6th Final Review "Thursday"

Write a phrase as an expression: "7 more than a number x."

• 7x

• x - 7

• x + 7

• 7 - x

Write a phrase as an expression: "Triple a number b."

• 3 + b

• 3b

• b ÷ 3

• b + 3

Simplify the expression: 4x + 3x.

• 7x

• x⁷

• 12x

• 1x

Simplify the expression: 5x + 2 - 3x + 4.

• 8x + 6

• 2x + 6

• 2x + 2

• 5x + 1

Write an expression: Mia has x apples, and her friend gives her 5 more.

• x - 5

• x + 5

• 5x

• x ÷ 5

Is this equation true when x = 3? 2x + 1 = 7

• True

• False

• Only true when x = 2

• Cannot tell

Is this equation true when x = 5? 3x - 4 = 12

• True

• False

• True when x = 6

• Only true when x = 4

Solve: x + 7 = 12

• 5

• 4

• 6

• 7

Solve: 3x = 18

• 3

• 6

• 9

• 5

Solve: 2x - 4 = 10

• 5

• 7

• 6

• 4