One Step Equations with Addition and Subtraction

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 involving addition or subtraction.

Front

What does it mean to 'undo' an operation in an equation?

Back

To 'undo' an operation means to perform the opposite operation to isolate the variable. For example, to undo addition, you subtract.

Front

Solve for x: x + 5 = 12

Back

x = 7

Front

Solve for x: x - 3 = 4

Back

x = 7

Front

What is the first step to solve the equation x + 7 = 15?

Back

Subtract 7 from both sides of the equation.

Front

Solve for y: y + 4 = 10

Back

y = 6

Front

What do you do to both sides of an equation to keep it balanced?

Back

You perform the same operation on both sides of the equation.

Front

Solve for x: 10 = x - 2

Back

x = 12

Front

What is the solution to the equation 8 + x = 20?

Back

x = 12

Front

Why do we subtract 5 in the equation x - 5 = 5?

Back

We subtract 5 to isolate x on one side of the equation.