Equations

Writing Equations

100

The sum of a number x and 7 is the same 15

x + 7 = 15

200

14 equals the product of a number y and 3

14 = 3y

300

12 less than a number y is 24

y - 12 = 24

400

The quotient of m and 3 is the same as 15

m/3 = 15

500

9 fewer than w is 18

w - 9 = 18

Solving Equations with Addition and Subtraction

100

x + 3.1 = 9.3

x = 6.2

200

y - 5.6 = 3.3

y = 8.9

300

x - 5/3 = 1/4

x= 23/12 or 1 11/12

400

y + 1/5 = 2/3

y = 7/15

500

x + 1/12 = 3/4

x = 8/12 or 2/3

Solving Equation with Multiplication and Division

100

3y = 6.3

y= 2.1

200

8y = 1/8

y = 1/64

300

2/3x = 5/8

x = 15/16

400

9.1w = 25.7

round your answer to the nearest hundredth 

w= 2.82

500

y/3.1 = 5.1

y=15.81