Final Review

15 + 12x – 4 - 9x + 7x²

•  11+22x+ 7x²
• 11 +3x+7x²

CHALLENGE!
Combine Like Terms: 
3x + 3y - 3x - 3y

• 6x+6y
• -6x-6y
• 0
• 12xy

Simplify 
6 - 7n - 8n + 8

• 15n + 14
• 14 - 15n
• 15n - 14
• 14 - 15n

^x/₁₀ = -8

• 80
• 4.5
• .80
• -80

19y – 8x – 7y + 4x – 3yx³ - 3yx

• 12y -4x - 6yx³
• 12y -4x - 3yx-3yx³

7x = 4.9

• 7
• .7
• 56
• -.7

19x – 16y + 13x -7y + 7x

• 39x-23y
• 29x – 18y 

What is the inverse operation needed to solve for p?
765 = p - 254

• subtraction
• addition
• multiplication
• division

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 
• Subtract 62 from each side.
• Multiply each side by 62.
• Add 123 to each side.

In the equation
4p = 20
 the variable, p, is being multiplied by 4. How should you show your work to isolate the variable and solve the equation?

• Multiply both sides by 4.
  The solution is x = 80.
• Subtract 4 from both sides. 
  The solution is p = 16.
• Add 4 to both sides. The solution is p = 24.
• Divide both sides by 4. The solution is p = 5.