Solving Equations

Addition Equations

100

x + 5 = 12

x = 7

200

x + 14 = 3

x = -11

300

x + (-9) = -2

x = 7

400

3 + x = -15

x = -18

500

-22 + x = -40

x = -18

Subtraction Equations

100

x - 8 = 6

x = 14

200

x - (-4) = 9

x = 5

300

10 - x = 2

x = 8

400

x - 3 = -12

x = -9

500

-7 - x = 20

x = -27

Multiplication Equations

100

4x = 20

x = 5

200

-6x = 42

x = -7

300

½ x = 12

x = 24

400

-9x = -27

x = 3

500

5x = 60

x = 12

Division Equations

100

x/2 = 9

x = 18

200

x/(-5) = 8

x = -40

300

x/4 = -7

x = -28

400

x/(-9) = 7

x = -63

500

x/(-3) = -11

x = 33

Combining Like Terms

100

3x + 2x

5x

200

7x − 4x + x

4x

300

6 + 2x + 4 − x

x + 10

400

5x − 3 + 2 − x + 4x

8x − 1

500

9x + 5 − 3x + 7 − x

5x + 12