Solving One and Two-Step Equations

Adding One-Step Equations

100

x + 10 = 56

x = 46

200

5 + j = 250

j = 245

300

b + 3.56 = 12.2

b = 8.64

400

9.21 + k = 27

k = 17.79

500

x + 1.235 = 45.999

x = 44.764

Subtracting One-Step equations

100

x - 34 = 12

x = 46

200

d - 56 = 17

d = 73

300

a - 145.65 = 250

a = 395.65

400

r - 7.5 = 44

r = 51.5

500

r - 19.01 = 29. 99

r = 49

Multiplying One-Step Equations

100

x/5 = 3

x = 15

200

g/12 = -5

g = -60

300

h/4.5 = 52

h = 234

400

n/6.6 = -2.3

n = -15.18

500

t/78 = 1.33

t = 103.74

Dividing One-Step Equations

100

3x = 15

x = 5

200

5s = 75

s = 15

300

7x = 42

x = 6

400

12m = -14.4

m = -1.2

500

-2.5p = 20

p = -8

Solving Two-Step Equations

100

5x + 10 = 25

x = 3

200

10x - 5 = 45

x = 5

300

h/5 + 12 = 14

h = 10

400

12y + 6 = 66

y = 5

500

If you add 10 from quadruple a number, you will get 54. What is the number? (x)

x = 11