Unit 2 Review

Single-Step Equations

100

g + 5 = 33

g = 28

200

r - (-19) = -77

r = -96

300

-^v⁄₅ = -45

v = 225

400

²⁄₅g = -14

g = -35

500

-10 + r = 20

30

Multi-Step Equations

100

5n + 6 = -4

n = -2

200

^c⁄_-3 + 5 = 7

c = -6

300

^m⁄_-5 + 6 = 31

m = -125

400

^(9z+4)⁄₅ - 8 = -6

²⁄₃

500

 2x + 1 +  3x = 6

1

Variables on Both Sides

100

3k - 5 = 7k - 21

k = 4

200

7(m-3) = 7

m = 4

300

3(1+d) - 5 = 3d - 2

all numbers

400

2[s + 3(s - 1)] = 18

s = 3

500

(a-4) = (2a+4)

a = -8

Literal Equations

100

Solve y=mx+b for m

m = ^(y-b)⁄_x

200

Solve 4b - 5 = -t for b

b = ^(5-t)⁄₄ 

OR b = (-t+5)/4

300

Solve ^(6c-t)⁄₇ = b for c

c = ^(7b+t)⁄₆

400

Solve c = ³⁄₄y + b for y

y = ⁴⁄₃(c-b)

500

Solve ^(5x+y)⁄_a = 2 for a

a = ^(5x+y)⁄₂

Three Star Questions

100

The goal of solving equations is to 

Isolate the variable

200

The inverse of division is ___________.

multiplication

300

The inverse of addition is _____________.

Subtraction

400

We accomplish that goal by "undoing" operations using ___________

Inverse Operations

500

We only combine like terms when the variables are

on the same side of the equation