1/18 Pre Algebra Review for End of Unit 2 - Virtual Day

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

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

4 + 3x - 5x - 4

• 2x
• 8x
• -2x
• 15x²

Simplify by combining like terms:
4x² - 3x + 11 -2x

• 4x² - 5x + 11
• 11x + 11
• 16x² - 5x + 11
• 10x²

2(4X - 7)

• 8x-14
• 8x-7
• 6x+7
• 8x+14

-4( -4d - 5)

• -16d+20
• 16+20
• 16d+20
• 16s-20

• 3

• -5

• 5

• 4

3(2x + 5) = 39

• x = 4

• x = 5

• x = 3

• x = -2

What is the inverse operation of addition?

• multiplication

• addition

• subtraction

• division

What is the inverse operation of multiplication? 

• multiplication
• addition
• subtraction 
• division 

What is another possible first step to solve this equation:

-11 - 3x = 44 - 2x

• Add 3 to both sides

• Add 2 to both sides

• Subtract 2x to both sides

• Add 2x on both sides.