One step equations (addition and subtraction)

Front

What is a one-step equation?

Back

A one-step equation is an equation that can be solved in one operation, either by addition or subtraction.

Front

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

Back

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

Front

Why do you add 7 in the equation x - 7 = 10?

Back

You add 7 to both sides to undo the subtraction and isolate x.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

If 2 = z - 14, what is z?

Back

z = 16.

Front

If 16 = n + 6, what is n?

Back

n = 10.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

How do you isolate a variable in an equation?

Back

You perform the inverse operation to both sides of the equation.

Front

What is the solution to the equation x + 5 = 12?

Back

x = 7.

Front

What is the solution to the equation y - 3 = 4?

Back

y = 7.