Grade 7 Algebra: Evaluating Expressions & Solving Equations

A store sells pencils for $2 each. If you buy x pencils, how much do you spend? Write an expression and evaluate it for x = 5.

• 10

• 20

• 5

• 15

Maria has 3 times as many marbles as John. If John has y marbles, write an expression for the number of marbles Maria has and evaluate it for y = 4.

• 15

• 12

• 10

• 8

A car rental company charges a flat fee of $50 plus $20 for each day you rent the car. Write an equation to represent the total cost C for d days and solve for d when C = 150.

• 10

• 5

• 7

• 3

The perimeter of a rectangle is 50 meters. If the length is 5 meters more than the width, write an equation to find the width w and solve it.

• 5 meters

• 10 meters

• 15 meters

• 20 meters

A recipe requires 2 cups of flour for every 3 cups of sugar. If you have s cups of sugar, write an expression for the amount of flour needed and evaluate it for s = 9.

• 10 cups of flour

• 8 cups of flour

• 4 cups of flour

• 6 cups of flour

A school is planning a field trip. Each student pays $15, and the total cost is $300. Write an equation to find the number of students s and solve it.

• 30

• 20

• 15

• 25

Tom is 4 years older than his sister. If his sister is a years old, write an expression for Tom's age and evaluate it for a = 10.

• 14

• 16

• 12

• 10

A bike costs $120. If you save $x each week, write an equation to find out how many weeks w it will take to save enough money to buy the bike when x = 15.

• 12

• 10

• 6

• 8

The sum of three consecutive integers is 72. Write an equation to find the smallest integer and solve it.

• 24

• 23

• 25

• 22

A gardener plants 5 rows of flowers with x flowers in each row. If there are a total of 45 flowers, write an equation to find x and solve it.

• 9

• 10

• 7

• 8