Equations Pre Test

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4
• 2a + 2b + 4
• 8ab
• 4ab + 4

Simplify the following expression by combining like terms:
3(2x - 4) + 6x - 1

• 12x - 13
• 12x - 5
• 11x - 2
• -x

Simplify the following expression:
-10x + 15 - 3x + 2

• 13x² + 17
• -13x² + 13
• -13x + 17
• -7x + 17

Simplify:
4(8x + 1) - 6(1 - 8x)

• -80x - 2
• 80x + 2
• -80x + 2
• 80x - 2

Expand and simplify 4(7x + 3).

• 28x + 12

• 28x + 3

• 47x + 12

• 47x + 3

5(y - 1)

• 5y + - 5

• 5y + 5

• -5y + 5

• -5y - 5

-9(g - 3)

• -9g + 27

• 9g + 27

• -9g + -27

• -9k - 27

-4(-4d + 5)

• -16d+20

• 16+20

• 16d+ -20

• 16s-20

Expand and simplify 3(2z + 1) - 2(5 + z).

• 4z - 7

• 7z - 7

• 8z - 7

• 4z + 13

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13