One Step Equations (Add and Subtract)

What is the inverse operation of addition?

• Multiplication

• Division

• Subtraction

• Exponentiation

If a number is decreased by 8 and the result is 5, what is the number?

• 10

• 11

• 12

• 13

Solve for x: x - 10 = 12

• x = 18

• x = 20

• x = 22

• x = 24

If you have the equation x + 5 = 12, what is x?

• x = 5

• x = 6

• x = 7

• x = 8

What is the inverse operation of subtraction?

• Addition is the inverse operation of subtraction.

• Multiplication is the inverse operation of subtraction.

• Division is the inverse operation of subtraction.

• Subtraction is the inverse operation of subtraction.

In the equation n + 10 = 20, what do you subtract from both sides to solve for n?

• Subtract 5 from both sides.

• Subtract 10 from both sides.

• Subtract 15 from both sides.

• Subtract 20 from both sides.

Solve for a: a + 4 = 14

• a = 6

• a = 8

• a = 10

• a = 12

What does it mean to isolate a variable?

• To get the variable alone on one side of the equation.

• To combine all variables into one term.

• To eliminate the variable from the equation entirely.

• To substitute the variable with a constant.

What operation would you use to solve n + 23 = 65?

• Add 23 to both sides.

• Subtract 23 from both sides.

• Multiply both sides by 23.

• Divide both sides by 23.

Solve for n: n - 6 = 10

• n = 10

• n = 12

• n = 14

• n = 16