Solving Equations

Addition

100

x + 4 = 5

x = 1

200

a + 10 = 13

a = 3

300

n + 20 = 45

n  = 25

400

x + 36 = 100

x = 64

500

0 = c + 27

c = -27

Subtraction

100

x - 2 = 6

x = 8

200

d - 7 = 9

d = 16

300

k - 80 =120

k = 200

400

x - 327 = 165

x = 492

500

a - 10 = -3

a = 7

Multiplication

100

(9)(x) = 27

OR 

9*x = 27

x = 3

200

(7)(x) = 63

OR 

7*x = 63

x = 9

300

(5)(x) = 400

OR 

5*x =400

x= 80

400

(11)(x) = 275

OR 

11*x = 275

x =25

500

(-21)(y) = -756

y =36

Division

100

y/6 = 2

y =12

200

x/4 = 10

x = 40

300

s/6 = 7

s = 42

400

12 = f/11

f = 132

500

p/14 = 8

p = 112

Two Step

100

6x + 1 = 13

x = 2

200

8g - 9 = 31

g = 5

300

r/3 + 5 = 14

r = 27

400

y/5 - 8 = -4

y = 20

500

-3x - 6 = 12

x = -6