Expressions and Equations

Solve the equation -5x + 6 + 7x = 36.

• x = 21

• x = -6

• x = 12

• x = 15

What is the value of x in the equation 3x - 5 = 16?

• x = 7

• x = 5

• x = 3

• x = 4

Which expression below is equivalent to 2(2x + 5) + 6x + 2 ?

• 5(2x+2)

• 2(5x+6)

• 4(2x +3)

• 10x +7

Which expression below is equivalent to 4(2x + 3) + 2x - 2 ?

• 5(2x+1)

• 10(x+1)

• 4(4x +3)

• 10(x +10)

Solve: 9(y - 4) = -18

• y = -2

• y = 6

• y = 2

• y = 3

Mrs. Lukaszewski made $260 in tips plus $12 an hour while working on Saturday. She made a total of $332. Which equation models the situation and can be used to determine, h, the number of hours she worked?

• 260 - 12h = 332

• 260 + 12h = 332

• 12h = 260 + 332

• 260 = 12h + 332

What is the perimeter of a square with a side length of 4x - 3 in terms of x?

• 16x - 12

• 8x - 6

• 16x - 3

• 8x - 3

• x = 9

• x = 40

• x = 5

• x = 8

What is the value of y in the equation 2y + 3 = 17?

• y = 5

• y = 7

• y = 6

• y = 8

Mrs. Yannucci bought 3 dozen cookies and 2 milkshakes for $34.00. Each milkshake cost $8.00. Write and solve an equation to determine the cost, c, of 1 dozen cookies?

• $.50

• $9

• $6

• $8.67