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You multiply both sides of the equation by the denominator.

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Q: How do I remove a variable out of the denominator when you are working with a rational equation?
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Related questions

Will you give me an example of a radical equation with no solution?

The answer to the question depends on the set of numbers within which you are working. If you are working in integers, x2 = 2.25 has no solution. However, it does have a solution in rational numbers (x = 1.5). If working with rationals, x2 = 6 has no rational solution but it does have a solution in real numbers. Yet again, x2 = -6 has no solution in the reals, but does have a solution in complex numbers.


What does it mean when an equation has no solution?

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Do you have to have a common denominator when your multiplying?

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How do you work a simultaneous equation?

You cannot work a simultaneous equation. You require a system of equations. How you solve them depends on their nature: two or more linear equations are relatively easy to solve by eliminating variables - one at a time and then substituting these values in the earlier equations. For systems of equations containing non-linear equations it is simpler to substitute for variable expression for one of the variables at the start and working towards the other variable(s).


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If the numerator divides evenly by the denominator, simply do that. When working with algebra you can multiply both sides by the denominator.


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