If a term is moved to the other side of the equation, you need to change its sign in the process

Splitting a number of items equally into groups

Mathagon

How To Solve

Change Sides, Change Sign

x Is Multiplied

x in the Numerator

Parentheses

A linear equation in one variable is an equation that can be written in the form 

 Watch this video to learn what that means, and to see examples.

What Is a Linear Equation in One Variable?

Learn about linear equations and how to solve them. Learn to check your answer, to use the change sides, change sign rule, and what to do about parentheses.

Linear Equations

Isolating the unknown is an important strategy, done by performing the same mathematical operations on both sides of the equal sign. Watch the video to see how.

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How Do You Solve an Equation?

What Is the Change Sides, Change Sign Rule?

The Change Sides, Change Sign rule helps you solve equations much faster! Each term changes sides and its sign. Watch this video to see how and why this works.

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How Do You Isolate X When It’s Multiplied by a Number in an Equation?

In equations with a number multiplied by [Inline math], you divide both sides of the equal sign by the number, in order to isolate [Inline math]. Watch this video to learn how.

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How Do You Isolate x When It’s Multiplied by a Number in an Equation?

How Do You Isolate X When There’s a Number in the Denominator?

When x is in the numerator, you isolate x by multiplying both sides of the equal sign by the number in the denominator. Watch this video to learn more.

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How Do You Isolate x When There’s a Number in the Denominator?

How Do You Solve an Equation Containing Parentheses?

To solve an equation containing parentheses, you need to use rules from algebra so you can isolate the unknown. Watch this video to learn more through examples.

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