Math 8 - Unit 2 Test Review

Using the given key, identify the equation represented by the algebra tiles.

• $x+4-6=4$

• $4x+6=4$

• $4x-6=4$

• $x-6=4$

Identify the equation created by the algebra tiles.

• $3x-1=-2x+2$

• $-3x+1=2x+2$

• $x+3-1=x-2+2$

• $-3x+1=2x-2$

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6

Which equation has a solution of x = 1

• 2x + 1 = 12
• 5x - 2 = 3
• x + 1 = x - 1
• 5 - x = 6

3x + 2(4x - 4) = 3

• 4
• 3
• 2
• 1

-8(-8x - 6) = -6x - 22

• 2/5
• -1
• 8/7 
• 2

-11-5a = 6(5a + 4)

• -1
• -2
• -3
• -4

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides
• Add the 2a and a 
• Distribute 4 to a and -5
• Distribute -4 to a and -5

-4x + 14 ≤ 54

• x ≥ - 10
• x ≤ -10
• x ≥ 10
• x ≤ 10

Solve.

• a > -24
• a > 6
• a > -36
• a > -10