Algebra Equation Test Review

2(3+x)=5x+54

• 17

• 16

• -16

• -17

20=3-5(x+1)

• -11

• -19/2

• -22/5

• -16/6

8x-2(3x+1)=20

• 2x-2=20

• 2x-1=20

• 2x+1=20

• 2x+2=20

2(4x+1)=6(2-x)

• 9x=10

• 9x=11

• 14x=10

• 14x=11

If 21 more than 3 times a number is -15, what is the number?

• -12

• -2

• 2

• 12

Solve for x
l 4x−3 l = 17

• x = 5 and x =-3.5
• x = 0 and x = -5
• x = 10 and x = -10
• No Solution

Solve for x
l x−6 l + 4= 10

• x = 12 and x = 0
• x = 3 and x = -3
• x = -12 and x = 0
• No Solution

| 3x - 6 | - 9 = -3

• No Solution
• x = 0 and x = 4
• x = 2 and x = -2
• x = -4 and x = 4

Solve for x
l 2x−1 l = 9

• x = 5 and x =-4
• x = 5 and x = -5
• Only x = 5
• No Solution

What is the FIRST step to solving the equation:

|x + 1| = 4

• Set up 2 equations

  x + 1 = 4

  x + 1 = -4

• Subtract 1 on both sides

• Set up 2 equations:

  x + 1 = 4

  x - 1 = 4

• Add 1 to both sides