Solving One Step Equations with Addition and Subtraction

What are inverse operations?

• Operations that increase the value of a variable

• Operations that undo each other

• Operations that multiply and divide

• Operations that add and multiply

What is the inverse operation of addition?

• Addition

• Subtraction

• Division

• Multiplication

In the equation 5 = x + 3, what operation should be performed to isolate x?

• Add 3 to both sides

• Divide both sides by 3

• Subtract 3 from both sides

• Multiply both sides by 3

What is the value of x in the equation 5 = x + 3?

• 2

• 3

• 8

• 5

In the equation y - 8 = 2, what operation should be performed to isolate y?

• Add 8 to both sides

• Subtract 8 from both sides

• Multiply both sides by 8

• Divide both sides by 8

What is the value of y in the equation y - 8 = 2?

• 10

• 8

• 12

• 6

In the equation 12.5 = C + 3.75, what operation should be performed to isolate C?

• Add 3.75 to both sides

• Subtract 3.75 from both sides

• Multiply both sides by 3.75

• Divide both sides by 3.75

What is the value of C in the equation 12.5 = C + 3.75?

• 10.75

• 11.75

• 8.75

• 9.75

When checking the solution for 12.5 = C + 3.75, what should the sum of C and 3.75 equal?

• 12.5

• 15.5

• 10.75

• 8.75

What is the purpose of checking the solution by substituting the value of the variable back into the original equation?

• To find a new variable

• To verify the solution is correct

• To simplify the equation

• To change the equation