Simplifying Expressions and Equations

Simplify:

3x - 5 + 6x + 8

• 9x-13

• 9x + 3

• 9x - 3

• 18x - 40

Simplify:

5(3x + 5) - 20

• 15x + 5

• 3x - 10

• 15x - 15

• 15x + 25 - 20

Simplify:

3(2x - 5) - 6(3x + 4)

• -12x - 39

• -12x - 9

• -24x - 1

• -24x -39

Simplify:

3(x-4)

• 3x-4

• 3x-7

• 3x-1

• 3x-12

Answer explanation

Multiply the 3 to 1 x and to the -4

Simplify:

-4(5x - 6)

• 20x-6

• -20x-6

• -20x+24

• -20x-10

Simplify:

3 - 2(-4x + 7)

• -20x + 35

• -4x + 7

• 8x - 11

• 8x - 17

Simplify:

2x - 5(x + 1)

• 3x - 5

• 8x + 1

• -3x - 4

• -3x - 5

Solve for a:

6a + 5a = -11

• a = -11

• a = 11

• a = -1

• a = 1

Solve for x:

4x + 6 + 3 = 17

• x = 2

• x = 3.75

• x = 5

• x = 6.26

Solve for x:

18 = 3(3x - 6)

• x = 0

• x = 2.3

• x = 1.6

• x = 4