Double Sided Equations

What are Double Sided Equations?

Double sided equations have an unknown on both sides. This means that  you will see the same variable on both sides of the equation.

Double Sided Equations – Exercises

Instructions:  Solve for the unknown variable in the following questions. You may want to see the examples below the quiz first.

[WpProQuiz 8]

Example

Double sided equations may contain constants, which are usually whole numbers or fractions.

They will also have terms that contain variables, such as x or y, and coefficients, which are the number part of the term.

Look at the following example of how to solve double sided equations.

Example:  Solve for y:  2y + 4 = y + 3

Answer:  y = –1

STEP 1:  Deal with the constants first.

2y + 4 = y + 3

2y + 4 – 4 = y + 3 – 4

2y + 4 – 4 = y + 3 – 4

2y = y – 1

STEP 2:  Get the variables to one side of the equation.

2y = y – 1

2y – y = y – y – 1

2y – y = y – y – 1

y = –1

STEP 3:  For advanced problems, you may need to perform further operations, such as multiplication or division.

You may also see advanced questions that involve shapes or figures.

Further Algebra Exercises

For more free practice problems, please visit our algebra practice page.

If you are taking the advanced part of the algebra test, you should also try our exercises on quadratics.

Double sided equations - Algebra Download