Expressions and Equations

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

• 2x + 7y

• 7x - y

• -x + 3y

• -x + 7y

Simplify the expression: 2(3x - 4) + 5(x + 2)

• 6x - 8 + 5x + 10

• 6x - 8 + 5x - 10

• 6x + 8 + 5x + 10

• 11x + 2

Solve the equation: 2x + 5 = 17

• 3

• 8

• 10

• 6

Solve the equation: 3(x - 4) = 15

• 12

• 9

• 6

• 18

Write and solve an equation for the following problem: The sum of a number and 8 is 20.

• 12

• 18

• 15

• 10

Write and solve an equation for the following problem: Three times a number decreased by 5 is 22.

• 14

• -3

• 7

• 9

Solve the equation: 2x + 3 = 7x - 4

• 7/5

• 5/7

• 3/2

• -7/5

Solve the equation: 4(x + 2) - 3(2x - 1) = 5

• 3

• 7

• 2

• -1

Solve the equation: 2x - 3 = 5/2

• 11/4

• 7/4

• 3/2

• -11/4