Intro to Equations

3 - 2a + 3a + 5a

• 5a+3
• 5a-3
• 6a + 3
• 8a+3

-12n - (-13n)

• -25n
• 25n
• n
• -n

Simplify the expression by combining like terms.

8a+4b+2c-3b+a

• 9a+b+2c

• 10a+7b+c

• 13abc

• 18abc

Simplify the expression: 7v + 2 + 12 + 2v

• 23
• 23v
• 9 + 14v
• 9v + 14

7d + 5 + 6d - 2

• 16d
• 16
• 13d + 3
• 13d - 7

12-6z-5+10z

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5

Solve  3x - 7 = 32

• 13
• -13
• 12
• -12

-4x+1=21

• x=120
• x=5
• x=30
• x=-5

To undo an operation, you must do its opposite or inverse to both sides of the equation. Match each operation to its inverse.

• Division

• Division

• Addition

• Subtraction

• Subtraction

• Multiplication

• Multiplication

• Addition