Solving Multi-Step Equations with Inverse Operations

A store sells pencils for $2 each and erasers for $1 each. If you buy a total of 10 items and spend $16, how many pencils did you buy?

• 8

• 4

• 5

• 6

Maria has twice as many marbles as John. If John has x marbles and together they have 30 marbles, how many marbles does Maria have?

• 10

• 15

• 25

• 20

A book costs $15 and a magazine costs $5. If you buy a total of 5 items for $50, how many books did you buy?

• 2

• 3

• 4

• 1

In a class, the number of boys is 3 more than twice the number of girls. If there are g girls, and the total number of students is 27, how many boys are there?

• 19

• 15

• 10

• 22

A gardener has 50 flowers. He plants some in the garden and gives away 12. If he has x flowers left, write an equation to find x.

• x = 38 + y

• x = 38 - y

• x = 12 + y

• x = 50 - y

A movie theater sells adult tickets for $12 and child tickets for $8. If 20 tickets were sold for a total of $180, how many adult tickets were sold?

• 10

• 8

• 5

• 3

A baker made 120 cookies. He sold some and has 30 left. If he sold x cookies, write an equation to find x.

• 80

• 100

• 90

• 60

In a school, the number of students in the 7th grade is 5 less than three times the number of students in the 6th grade. If there are s students in 6th grade, how many are in 7th grade?

• s + 5

• 3s - 5

• 3s + 5

• 2s - 5

A car rental company charges a flat fee of $50 plus $0.20 per mile driven. If a customer paid $70 for a rental, how many miles did they drive?

• 50 miles

• 150 miles

• 200 miles

• 100 miles

A farmer has chickens and cows. If the number of chickens is 4 more than twice the number of cows and there are 20 animals in total, how many chickens does the farmer have?

• 14

• 16

• 12

• 10