Equations Part A

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

When solving 234 + N =389, what operation would you use to find the answer

• multiplication
• addition
• subtraction
• division

What number do you need to get rid of?

• 3

• 28

How do I solve:

• add 3
• multiply by 3
• divide by 3
• subtract 3

What number do you need to get rid of?

• -6

• 72

How do I solve:

• multiply by -6

• add -6

• divide by -6

• divide by 72

In the equation x + 7 = 12

7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation?

• Subtract 7 from both sides.

• Subtract 12 from both sides

• Multiply both sides by 7

• Add 12 to both sides

Which equation has x =5 as the solution (as the answer)?

• 10 = x + 15

• 5 = 2x

• 10 = 2x

What would be the best first step to solving the equation?

-3=x+5 +2x

• add 3 to both sides

• subtract 5 from both sides

• combine like terms

• subtract -5 from both sides

What would be the best first step to solving the equation?

6(x+ 1) = -24

• divide both sides by -6

• Distribute 6

• Combine like terms

• subtract 1 from both sides