One-Step Algebraic Equations

Write an Equation

100

A number added to 8 is 19

8 + n = 19

200

Twice a number is 30.

2n = 30

300

The quotient of 8 and a number is -2.

8/n = -2

400

28.9 is 7.2 more than a number.

28.9 = n + 7.2

Solve an Addition Equation

100

n + 12 = 45

n = 33

200

28 + n = 67

n = 39

300

n + 2.5 = 9.2

n = 6.7

400

n + 458 = 905

n = 447

Solve a Subtraction Equation

100

n - 6 = 4

n = 10

200

n - 16 = 5

n = 21

300

n - 45.2 = 24.3

n = 69.5

400

n - 19.2 = 6.7

n = 25.9

Solve a Multiplication Equation

100

7n = 35

n = 5

200

11n = 132

n = 12

300

322 = 14n

n = 23

400

173.6 = 31n

n = 5.6

Solve a Division Equation

100

n/3 = 9

n = 27

200

n/16 = 4

n = 64

300

n/32 = 8

n = 256

400

n/168 = 7

n = 1,176