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Algebra Basics 2
Solve for x: x - 2 > 5
In the problem 4 + 4 ÷ 2 x 6, what do I do first?
Algebra Basics 2
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Answers
1
In the problem 4 + 4 ÷ 2 x 6, what do I do first?
4÷2
2x6
4+4
2
Solve for x: x - 2 > 5
x > 7
x = 7
x = 3
x > 3
3
What do I do first to solve this equation: -3x - 1 = 14?
Divide by -3
Add 3x to both sides
Combine like terms
Add 1 to both sides
4
Factor x
2
- 25
(x-5)(x+5)
(x+5)(x-5)
Not possible
(x-5)2
5
Factor x
3
+ 27
(x+3)3
(x+3)(x2-3x+9)
(x+3)(x2+3x+9)
Not possible
6
If 4x - 5 < 15, do I switch the inequality?
No
x > 5
Yes
x < 5
7
Combine like terms: 4n + 3x - 8n + 9x
7nx - nx
12n + 12x
-4n + 12x
8nx
8
To factor 4x
2
+ 8x + 4, first I need to ...
Factor a 4
Look for two numbers that add to 8 but multiply to 4
Look for a combination of factors of 4 and 4 that add to 8
Can't factor this
9
What is the intercept of y = 4x + 5?
1/5
4
5
-1/4
10
What is the sign of -9 + 5?
4
Positive
-4
Negative
11
What is the slope of the line parallel to y = -3x - 7?
-3
-7
1/3
1/7
12
What is the sign of -5 - 3?
Negative
-8
Positive
8
13
What is the first step?
Solve for x and y
Multiply the first equation by 1
Multiply the second equation by -5
Add the equations
14
What's the first step to graph this equation?
Make a table of values
Divide by 8
Isolate y
Isolate x
15
In the problem 10 - 7 + 6 - 8 + 9, what do I do first?
8 + 9
10 - 7
7 + 6
6 - 8
16
What is the slope of y = -2x + 3?
1/2
1
-1/3
-2
17
What is the first step?
Subtract 2
Subtract 8
Combine like terms
Distribute
18
What is the greatest common factor of 8 and 12?
96
4
2
20
19
What needs to be the same when I combine like terms?
The variables and the exponents of the variables
The exponents
The variables
The coefficients
20
Factor x
2
+ 16
Not possible
(x-4)2
(x+4)2
(4x)2
21
If 5x + 4 = 29, what is the first step?
Subtract 4
5
Divide by 5
25
22
What is the greatest common factor of x and x
2
?
I have no idea
x2
x3
x
23
Factor x
3
- 27
Not possible
(x-3)3
(x+3)(x2-3x+9)
(x-3)(x2+3x+9)
24
How do I solve this equation: 4x = 24?
Divide by 4
Multiply by 4
Subtract 24 from both sides
Add -4x to both sides
25
What is the slope of the line perpendicular to y = -7x - 4?
-41/4
1/4
-7
1/7
26
What do I do first if 3x + 2 - x = 6?
Add x to both sides
Subtract 3x from both sides
Add 3x and -x
Subtract 2 from both sides
27
Factor x
2
+ 4x +3
x(x+4)+3
(x+1)(x+3)
(x-1)(x-3)
x(x+3)+1
28
What is the sign of (-8)(4)(-2)?
Negative
Positive
64
-64
29
What is the first step to solve for x and y?
Multiply the second equation by -4
Multiply the first equation by -1
Add the equations
Solve for x and y
30
If 4(x - 3) = 12, what should I do first?
Distribute the 4
Divide by 4
Add 3 to both sides
Subtract x from both sides
