Solve simple mathematical proportions by writing the ratios as fractions, setting these fractions equal to each other, cross-multiplying and then solving for any variables. A simple ratio to solve is 2:x = 3:9, which mea... More »

www.reference.com Math Algebra

In order to solve for x, you must isolate x on one side of an equation. To separate x from a fractional coefficient, you must cancel that fraction, usually by multiplying its inverse. You should not need a calculator, as... More »

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In order to solve a linear equation, the variable must be isolated. While there are many ways for this to be accomplished, one thing remains the same in order to correctly solve it - maintain the balance. To maintain the... More »

www.reference.com Math Algebra
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Algebra is a method of solving mathematical equations in a way that allows a person to derive unknown quantities, such as bank interest, percentages or proportions. The use of letter variables in algebra to represent unk... More »

In certain applications of mathematics, particularly in business math and economics, the law of variable proportions states that the marginal product of a factor, when increased by itself, will eventually start to declin... More »

www.reference.com Math Algebra

To solve rational equations, use the common denominator to resolve all the fractions. Removing the denominators makes it much easier to deal with the remaining terms, converting the problem into a simpler equation. More »

www.reference.com Math Algebra

Equations containing fractions are solved by first eliminating the denominator of any fractions. In practice, they are solved by converting the fractions into whole numbers. More »

www.reference.com Math Algebra
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