Equations Review

One Step Equations

100

m + 2 = 4

m = 2

200

x − 7 = 13

x = 20

300

4x = 20

x = 5

400

-9 + m = −13

x = -4

500

-8x = -64

x = 8

Two Step Equations

100

−9x + 1 = −80

x= 9

200

−15 = −4m + 5

m= 5

300

-2x - 3 = 7

x = -5

400

10 − 6v = −104

v= 19

500

−9x − 13 = −103

x= 10

Mystery Equations

100

5y - 11 = 49

y = 12

200

2(x + 5) = 8

x = -1

300

-3x + 8 = -4

x = 4

400

-8a + 1 = -23

a= 3

500

-4(x - 3) = 12

x = 0

Two Step Equations (distributive property)

100

2(4v+2) = 28

v=3

200

-5(2n − 10) = -30

n= 8

300

5(-2x + 1) = -35

x = 4

400

3(v + 9) = 6

v= -7

500

2(−6x + 4) = −40

x= 4

Vocabulary

100

The letter in an expression or equation

variable

200

Just a number

_constant

300

A math statement with an equal sign

equation

400

The number attached to a variable

Coefficient

500

A math statement without an equal sign

expression