Solving equations

Question 1

Solve: x/5 + 11 = 13

x = 

Question 2

Solve: 7x = 91

x = 

Question 3

Solve: x − 10 = −15

x = 

Question 4

A rectangular dog run is 6 m wide. Its perimeter is 74 m. Use 2L + 12 = 74 to find its length L, in m.

Answer 

Question 5

Solve and check by substituting: 5x + 1 = 16

x = 

Question 6

Solve: x ÷ 7 = 11

x = 

Question 7

A phone plan costs $20 per month plus $8 per GB of data. One month's bill was $68. How many GB were used?

Answer 

Question 8

Leo has $179 saved and adds $7 each week. After how many weeks will Leo have $214?

Answer 

Question 9

Solve: x + 18 = 72

x = 

Question 10

Solve: 7x + 18 = 88

x = 

Question 11

Solve: x + 2/4 = 1 1/2. Give x as a fraction or mixed number in simplest form.

Answer (as a fraction)

Question 12

Solve: y + 3 = 13.7

y = 

Question 13

Solve: 9 − 7x = 37

x = 

Question 14

Solve: 4x + 1 = 21

x = 

Question 15

Solve: (4/5)x = 20

x = 

Question 16

Solve: x/5 − 4 = 5

x =