Solving Equations

Add and Subtract

100

x - 9 = 14

x = 23

200

c + 12 = 19

c = 7

300

p - 26 = 16

p = 42

400

18 - (-f) = 91

f = 73

500

-17 - x = -89

w = 72

Multiply and Divide

100

x/9 = 10

x = 90

200

8x = -48

x = -6

300

-x/5 = -45

x = 225

400

-58 = -29h

h = 2

500

-g/24 = 5/12

g = -10

Two-step and more

100

5x + 6 = -4

x = -2

200

9 + y/5 = 6

y = -15

300

7g - 14 = -63

g = -7

400

c/-3 + 5 = 7

c = -6

500

10(7 - y) + 20y = 100

y = 3

Variables on both sides

100

3k - 5 = 7k - 21

k = 4

200

5t - 9 = -3t + 7

t = 2

300

3 - 4x = 10x + 10

x = -1/2

400

8s + 9 = 7s + 6

s = -3

500

-10 + x + 4 - 5 = 7x - 10 + 5

x = -1

Grouping symbols

100

3(a - 5) = -6

a = 3

200

8 = 4(3c + 5)

c = -1

300

6 = 3 + 5(d - 2)

d = 2.6

400

6(r + 2) - 4 = -10

r = -3

500

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

w = 2