Equation Word Problems

Maria has 25 dollars.  She has to buy a gallon of milk which costs $3.50.  She wants to spend the rest of her money on cereal that costs $4.50 per box. Which equation can be used to find out how many boxes she can purchase?

• 3.50x + 4.50 = 25

• 3.50x + 25 = 4.50

• 4.50x + 3.50 = 25

• 4.50x + 25 = 3.50

472 students are going on a field trip. 120 students will be returning home and the rest will be spending the night in cabins. If a cabin sleeps 8 people, which equation can be solved to find how many cabins need to be rented?

• 120 - 8c = 472

• 120 + 8c = 472

• 120c - 8 = 472

• 120c + 8 = 472

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63

• 7x = 63

• 7x - 35 = 63

• 35x + 7 = 63

A taxi charges $3, plus $1.50 for each mile traveled.  Mr. Lewis rode in the taxi from his home to the airport and was charged $30.  Which equation can be used to find how many miles Mr. Lewis lives from the airport?

• 3x + 30 = 1.50

• 1.50x + 3 = 30

• 30x + 1.50 = 3

Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to the gym. Which equation matches this situation?

• 50 + 20m = 290

• 20 + 50m = 290

• 50 + 20 = m

• 50m - 20 = 290

14+3x=26

• x=6

• x=1

• x=4

• x=3

82=15x-23

• x=9

• x=7

• x=6

• x=4

Choose the first step in solving the following equation.

-3y - 12 = 14

• add 3 to both sides

• add 12 to both sides

• subtract 12 from both sides

• subtract 3 from both sides

Solve:
x – 8 = –5 

• 13

• –13

• 3

• –3

Solve:

• 20

• 7

• 10

• 3