Solving One-step Equations (adding & subtracting)

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step, typically by adding or subtracting a number to isolate the variable.

Front

How do you solve the equation x - 8 = 5?

Back

Add 8 to both sides: x - 8 + 8 = 5 + 8, so x = 13.

Front

What is the solution to the equation x + 3 = 29?

Back

Subtract 3 from both sides: x + 3 - 3 = 29 - 3, so x = 26.

Front

How do you solve the equation -2 + x = 15?

Back

Add 2 to both sides: -2 + x + 2 = 15 + 2, so x = 17.

Front

What is the solution to the equation s + 42 = 75?

Back

Subtract 42 from both sides: s + 42 - 42 = 75 - 42, so s = 33.

Front

How do you solve the equation 14 = x - 5?

Back

Add 5 to both sides: 14 + 5 = x - 5 + 5, so x = 19.

Front

What does it mean to isolate a variable in an equation?

Back

Isolating a variable means to manipulate the equation so that the variable is on one side by itself, making it easier to solve.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

If x - 4 = 10, what is x?

Back

Add 4 to both sides: x = 10 + 4, so x = 14.