REVIEW FOR FINAL 2

Solve 6x - 3 = 5x + 2

• 5

• 5/11

• -1/11

Solve 7 + 5z = 8 + 5z

• Identity

• No Solution

• 1/10

Solve 4(-x - 4) = -2(4x + 2)

• 2

• Identity

• 3

Solve 2w + 18 - w = 10w -9(w - 2)

• 9

• 18

• Identity

Tags

CCSS.8.EE.C.7A

Solve 42 - 9t = 5t

• -21/2

• 3

• -3

Solve 7y + 6 = 7y - 10

• Identity

• No Solution

• 2/7

The objective when solving an equation is to....

• isolate the variable.
• check the solution.
• guess and check.
• Combine Like Terms.

Which step cannot be performed first when solving the equation
5 - 2(x - 7) = x + 1 + 3x

• Distributing -2 to (x - 7)
• Combining x and 3x
• Subtracting 1 from both sides
• 5 - 2

Tags

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

5(2x -1) = -5+ 10x

• x = 5
• x = 0
• all real numbers
• no solution

8v - 4(v + 8) = 8

• 2
• 10
• 4
• -4 

Tags

CCSS.8.EE.C.7B