How to solve for x in a linear equation.
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Solving for x in a linear equation in one variable.
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Solution Summary
This shows four examples of how to solve linear equation in one variable as well as how to check the answer to make sure it is correct.
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Solving a linear equation in one variable
Solve for x:
X + 9 = 20
If you want to solve an equation you usually do the opposite. In this case you would need to subtract 9 from both sides, so you can isolate x. This will eliminate the 9 from the one side. But what you do to one side you need to do to the other.
X + ...
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