Solving Equations

One-Step Equations

100

x - 5 = -20

x = -15

200

x/7 = 3

x = 21

300

v + 15 = 34

v = 19

400

-15 = -6 + x

x = -9

500

-8 + r = -11

r = -19

Two-Step Equations

100

-10 - 7n = -3

n=-1

200

-143 = -8 - 9x

x=15

300

6x - 1 = -85

x=-14

400

-7 - 9x = 2

x=-1

500

x/3 - 7 = -4

x=9

Equations with Distribution

100

6(8x + 4) = 168

x=3

200

-280 = -8(7n + 7)

n=4

300

-6(7 - 4m) = 126

m=7

400

-6(4x + 5) - 12 = 102

x=-6

500

3(5 - 4k) = 81 + 30

k=-8

Equations with Variables on Both Sides

100

3x - 9 = x + 7

x=8

200

-6 + x = -9 - 2x

x=-1

300

6 - 3b = -6b - 12

b=-6

400

1 - 4x = -7 - 5x

x=-8

500

2n + 7 = -2 + 5n

n=3

Miscellaneous

100

What kind of operations do we use to solve equations?

Inverse or opposite operations

200

3(x+2) = 2(3x-12)

x=10

300

What is Mr. Chen's favorite color?

Green

400

What are our school colors?

Blue and Gold

500

2+3(-4 - 3)(4 + 2 - 6) - 4

-2