11/2 & 11/3 Expressions and Equations REVIEW

Combine Like Terms:

3x + 6y - 12 + 10y - 8 - 4x

• 7x + 16y + 20

• -x + 16y + 20

• -x + 16y - 20

• 15y - 20

___ , ____, and ____ are coefficients

• 6 , 8, and 7

• 6, -8, and 7

• -3, 5, and 9

• 3, 5, and 9

Constants are terms that

 (do/do not)

contain variables.

• DO

• DO NOT

There are (a)   terms.

Distribute:

-5(4x -12) =

• -20x + 60

• 20x - 60

Equations:

are  mathematical statements that two expressions are _______.

• unequal

• equal

• similar

• opposites

What is the largest number that can be factored out of the expression 45x + 60?

• 3

• 5

• 15

• 20

Solve:

-3x = -21

x =

(a)  

Solve for z:

z - 15 = -5

z =

(a)  

Two - Step Equations:

n/9 - 30 = 60

• 10

• 81

• 810

• 9