Writing and Solving Equations

Writing Equations

100

six is equal to the difference of a number and eighteen

6=n-18

200

the product of fourty and a number is one-hundred-twenty

40 x t = 120

300

Five is equal to three less than twice a number

5=2x-3

400

Fifty times a number cubed is two hundred

50 x t³ = 200

500

The difference of a number and three, divided by two is equal to six

(n-3) / 2 = 6

Solving Equations

100

87 = 30 + p

p = 57

200

-3.2j = 12.8

j = -4

300

-65 = y - 18

y = -47

400

g/8 = 16

g = 128

500

k + 5.2 + 3.15 = 12

k = 3.65

Mystery

100

Is the given number a solution to the equation?

9x=72

x=8

Yes

200

6c = 24

c = 4

300

Write the word sentence as an equation: half of a number plus 2 equals 9

1/2x + 2 = 9

400

Is the given number a solution to the equation?

x + 12=15

x=27

no

500

z/6 =12

z = 72

One-Step Equations

100

56+x=100

x = 44

200

x + 136=203

x = 67

300

36 = 4r

r = 9

400

x/4=5

x = 20

500

r/8=4

r = 32

Equations

100

4x=16

x = 4

200

x + 64=28

x = -36

300

10x=50

x = 5

400

40x=-8

x = -0.2

500

x - 503=253

x = 756