# High School Math : How to solve two-step equations with decimals in pre-algebra

## Example Questions

### Example Question #1 : How To Solve Two Step Equations With Decimals In Pre Algebra

Explanation:

This is  a two-step equation.  First you must add the decimals up to have a singular variable element

Then divide both sides by 4:

### Example Question #2 : How To Solve Two Step Equations With Decimals In Pre Algebra

Solve the equation for . (Round to two decimal places).

Explanation:

Subtract from both sides of the equation, and simplify.

Divide both sides by . Be careful of the negative sign.

### Example Question #2 : How To Solve Two Step Equations With Decimals In Pre Algebra

Solve for

Explanation:

The goal is to get  alone on one side. Therefore you subtract  from both sides to get . Then divide both sides by  to get  alone.

.

### Example Question #4 : How To Solve Two Step Equations With Decimals In Pre Algebra

Josie buys worth of groceries.  The sales tax is .  If she pays with , how much change should she get?