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Expressions and Equations
Expressions and Equations
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1
3( x + 7) =
I don't have a clue
-3x + 21
21 - 3x
3x + 21
2
Equation allows you to find the missing _______, or __________
exponent or power
variable or inverse
value or variable
variable or solution
3
4( 6 + 3) =
36
64
46
63
4
< this symbol means
less than
more than
greater than
least of these
5
Like terms must have the same __________ and the same _____________s
WORDS, NUMBERS
EXPONENT, POWER
VARIABLES, POWER
EXPRESSIONS, TERMS
6
In the expression 7a + 4 which is the Constant
+
4
7a
7a + 4
7
We can simplify algebraic expressions by combining _______________
Like brains
Like terms
Like math problems
Like signs
8
A Coefficient is the number in front of a variable
True
False
9
Like terms must have the same___________and the same _________________
coefficient
variables, power
words, numbers
expression, terms
10
This symbol means greater than equal to
>
<
>
<
11
X + 1.6 = 8.2
X = 6.4
X = 6.7
X = 6.6
X = 6.5
12
SOLVE: 4X = 16
X = 6
X = 4
X = 7
X = 5
13
In the expression 7a + 4 which is the first term
7a
+
I don't know - Don't care
7a + 4
14
Isolate the variable by using __________operations
Balanced
Inverse
Isolate
Solution
15
Terms are separated by
Operators
Constants
Exponents
Expressions
16
= this symbols means
equal to
not equal to
greater than
less than
17
Check your solution by plugging your answer back into the ___________
expression
variable
equation
solution
18
In the expression 7a + 4 which is the expression
7a + 4
7a
4
+
19
6x=16
x=96
x=2.4
x=24
x=2.6
20
A negative sign indicates the
not today
Was not paying attention
the same number
opposite of a number
21
X - 34 = 20
X = 34
X = 64
X = 54
X = 44
22
>
This symbol means less than equal to
This symbol means greater than equal to
This symbol means less than
This symbol means equal to
23
terms are
I don't have a clue
Numbers, or variables without operators
Numbers, or constants separated by an expression
Numbers, or variables, or coefficients separated by operators
24
-1/2(6x + 2)=
6 1/2x + 2 1/2
3x + 1
-3x - 1
3x - 1
25
Inverse operations are operations that are opposites or undo each other
False
True
26
x - 1/10 = 1/2
x = 6
x = 3
x = 5
x = 4
27
Like terms are
the number behind the variable
constants, or numbers that have the same variables and exponents
constants, or numbers that have different variables and exponents
a number, variable, and a coefficient
28
x/2 - 14 = 20
x=78
x=79
x=68
x=69
29
Identity property is the sum of a number and zero, is the number
True
False
30
Coefficient is
The number in back of a variable
Then number beside a number
The number beside a like term
The number in front of a variable
31
-0.5x > 4
x < -8
x > 8
x < 8
x > -8
32
An expression does not have an equal sign
True
False
33
The Identity property of 1 says
the number multiplied by one does not keep its identity
the number multiplied by one keeps its identity
the number multiplied by one does not stay the same
that the property of the identity of a number is kept secret
34
Elijah buys 3 boxes of markers. Each box has the same number of markers total is 15. Write and equation and solution.
Equation: 3x = -15 Solution: x=-5
Equation: 3x = 15 Solution: x=10
Equation: 3x-15 Solution: x=10
Equation: 3x = 15 Solution: x=5
35
5x - 7.4 = 7.6
x=3
x=2.5
x=5
x=4
36
1.5x - 9 = 15
x=16
x=17
x=-16
x=-17
37
6X = 16
X = 2.6
X = 2.9
X = 2.7
X = 2.8
38
Solve 4x - 12 < 8
x < 5
x > 5
x = 8
x = 5
39
In the expression 7a + 4 which is the variable
7a +4
4
a
7a
40
An unknown quantity represented by a letter or symbol
Exponent
Variable
Equation
Operator
41
-2(-g + 5)=
2g - 10
-10g
-2g +10
-2g - 10
42
In the expression 7a + 4 which is the coefficient
7
+ 4
7a + 4
7a
43
Keep your equation
on your paper
balanced
solution
Isolated
44
9( 7 + 6)=
117
113
108
800
45
-2.5(4x - 2)=
-10x - 5
10x - 5
10x + 5
-10x + 5
46
-2(p + 5)=
-2p + 10
-7p
-2p - 10
2p + 10
47
X/5 = 13
X = 50
X = 65
X = 60
X = 55
48
Inverse operation are
operations that do not work together to form a bond
operations that work together and form a bond
operations that are exactly the same
operations that are opposite of each other
49
In the expression 7a + 4 which is the Operator
4
7a
7a + 4
+
50
An Equation is solving a problem so that there are
simplified expressions
unequal values on either side of the equal sign
expressions that has to be simplified
equal values on either side of the equal sign
51
0.5x + 15 = 18
x=5
x=6
x=3
x=4
52
Solve: X + 9 = 13
X = 6
X = 3
X = 4
X = 5
53
terms are
Numbers, or variables without operators
Numbers, or constants separated by an expression
Numbers, or variables, or coefficients separated by operators
I don't have a clue
54
8( 3 + 5) =
63
36
64
46
55
Distributive Property allows the number outside of the parentheses
to be distributed to the operations
I was not paying attention
to be distributed to the terms inside the parentheses
to be distributed outside of the parentheses
56
3x + 3= 9
3x - 3
3x + 9
3x + 3
X =
57
A Mathematical Phrase that can contain numbers, variables and operators
Coefficient
Expression
Term
Like Terms
58
Solve 3x + 5 > 11
x = 2
x >11
x > 2
x = 11
59
X - 8 = 14
X = 22
X = 20
X = 21
X = 23
60
X - 1/10 = 1/2
X = 5
X = 4
X = 3/6
X = 3/7
61
> This symbol means
greater than
less than
more than
least of these
62
A negative value changes the signs of the terms inside the parentheses
False
True
63
A Term is a __________, ____________ and ___________________
number, variable, coefficient
number, term, operators
number, variable, term
number, term, constant
64
Bj pays for 4 movie tickets. He buys 4 popcorn each at $2.50 each. Total cost is $64.00 What is the movie ticket price?
Equation: 4 + 2.50 =64 Solution: t=6..50
Equation: 4(t + 2.50)=64 Solution: t=13.50
Equation: 4(4t + 2.50)=64 Solution: t=16.50
Equation: 4(2.50)=64 Solution: t=57.50
