Use Inverse Operations to isolate the variable

• Inverse of addition - subtraction

• Inverse of subtraction - addition

• Inverse of multiplication - division

• Inverse of division - multiplication

Our Strategy

• Keep it balanced

• What you do to one side, do to the other

• "Copy and Paste"

3x - 6 = 12

• Add 6 to both sides: 3x = 18

• Divide both sides by 3: x = 6

• Check: 3(6) - 6 = 18 - 6 = 12

What two operations are we using in this problem?

(Dividing and Adding)

Our first step is to SUBTRACT 7!!

(SADMEP--Subtract comes before Multiply)

Our second step is to MULTIPLY by 5!!

(Always do the same to BOTH sides)

Our answer is 50!!