What is the difference between algebraic expressions and equations?

Equations have an equal sign ( = ), and expressions do not.

How would you solve the following equation? -3x=9

Divide both sides of the equation by -3.

What do like terms have in common?

They all contain the same variables to the same degree.

How would you solve the following equation? x+1=2

Subtract 1 from both sides of the equation.

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Algebra Basics

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Answers

1
What is the difference between algebraic expressions and equations?
Equations have variables, and expressions do not.
Expressions can be solved and equations cannot.
Equations have an equal sign ( = ), and expressions do not.
Expressions have constants, and equations do not
2
What are these parts of an algebraic expression called?
thingies
variables
letters
x's and y's
3
How would you solve the following equation? -3x=9
Divide both sides of the equation by -3.
Add -3 to both sides of the equation.
Multiply both sides of the equation by -3.
Subtract -3 from both sides of the equation.
4
Which one of these is an algebraic equation?
(2+1)-3^2
4x+2=5-y
2x-3y+1
4^3=4\times4\times4=64
5
Solve the equation: x+1=2
x=1
x=0
x=4
x=3
6
What do like terms have in common?
They all have the same coefficient and degree.
They all contain the same variables to the same degree.
They all have the same sign and coefficent.
They all have the same coefficients and variables.
7
Which one of these is an algebraic expression?
2x-3y+1
(2+1)-3^2
4x+2=5-y
4^3=4\times4\times4=64
8
Which one of these are like terms?
2x^2 and 3x
-y and xy
b and -b
4ab and 6a^2b
9
Combine the like terms: 2x+3y-x+2y
x+5y
-6xy
6xy
x+y
10
What is this part of an algebraic expression called?
degree
square
exponent
two
11
Combine the like terms: -xy+y^2+3x^2y-2xy
-3xy+4x^2y^2
-3xy+y^2+3x^2y
-6xy+y^2
y^2
12
What is this part of an algebraic expression called?
constant
addition
coefficient
number
13
Solve the equation: -3x=9
x=-3
x=6
x=-6
x=3
14
How would you solve the following equation? x+1=2
Add 1 to both sides of the equation.
Subtract 1 from both sides of the equation.
Subtract 2 from both sides of the equation.
Add 2 to both sides of the equation.
15
What are these parts of an algebraic expression called?
numbers
coefficients
constants
multipliers

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