Prealgebra Equations

4 = 2(x + 3)

• 1/2
• 7/2
• -1
• 5

Solve: 5x - 14 = 8x + 4

• 6
• -6
• -18/13
• 10/3

What is the first step to solve this equation:

11 - 3x = 44

• Add 3 to both sides

• Add -11 to both sides

• Add 11 to both sides

• Divide 3 on both sides.

-2x-7+3x=10

• x=-2
• x=3
• x=10
• x=17

 What is the second step in solving the following equation?
-3x + 5 = 20

• Subtract 5 from both sides
• Divide both sides by -3
• Divide both sides by 3
• add 3x to both sides

Solve for v.

• 60
• -3
• 15
• 3

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

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

Solve for k:
3k + 5 = 23

• k = 4
• k = 5
• k = 6
• k = 7

Solve the equation. Check your solution.

• -90
• 90
• -40
• -180

Solve the equation. Check your solution.

• 80
• 45
• 180
• 5