IXL | Solve one-step equations with decimals and fractions

Solve for

8.3

6.9

ref_doc_title.

Learn with an example

question

Solve for

–

0.27

5.3

key idea

A solution to an equation is a value of the variable that makes the equation true.

To solve an equation, you can use inverse operations to get the variable by itself.

Addition and subtraction are inverse operations.
Multiplication and division are inverse operations.

Do the same operation to both sides of the equation to preserve equality.

solution

First, identify the operation in the equation.

–

0.27

5.3

The variable

is subtracted by 0.27. To get

by itself, add 0.27 to both sides of the equation.

–

0.27

5.3

0.27

5.3

0.27

5.57

To check your answer, substitute the value of the variable into the equation. If the equation is true, your answer is correct.

–

0.27

5.3

5.57

–

0.27

5.3

This equation is true

5.3

This equation is true

Looking for more? Try these:

Lesson: Solving equations

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Teacher tools

Work it out

Not feeling ready yet? These can help:

M.7Solve one-step equations

B.6Add and subtract rational numbers

B.9Multiply and divide rational numbers

Lesson: Solving equations

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