Equations

One Step

200

x + 5 = 7

x = 2

400

x - 5 = 10 

x = 15

600

-2 + x = -4

x = -2 

800

15x = -60

x = -4

1000

x / 6 = 15

x = 90

Two Step

200

3x + 5 = 20

x = 5

400

-3x + 5 = 20

x = -5

600

-3x - 7 = -28

x = 7

800

17 - x = -3

x = 20

1000

135 - 4x = 105

x = 5

Multi-Step 1

200

3m + 5m - 7 = 89

m = 12

400

7m - 6m + 5 = 20

m = 15

600

20 = 3y + 7 - 3y

No Real Solution

800

14 = 2x - 7 + 5x

x = 3

1000

56 = -3x + 7 - 4x

x = -7

Multi-Step 2

200

3(x + 7) = 39

x = 6

400

99 = 3(-7 -5n)

n = -8

600

7(5m + 2) - 7m = 154

m = 5

800

5b + 33 = 4(2b + 3)

b = 7

1000

-8(1 + 10r) - 9r = 9(1 - 8r)

r = -1

Vocabulary

200

The opposite of multiplication when solving an equation

Divison

400

The opposite of subtraction when solving an equation

Addition

600

Any number that is attached to a variable in an equation

Coefficient

800

Any number in an equation that is not attached to a variable

Constant

1000

A multiplication, division, addition, or subtraction symbol attached to a number

Operator (operation)