Solving Equations - Cool math Pre-Algebra Help Lessons - How to Deal with Fractions & Decimals

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Coolmath Pre-Algebra
Solving Equations Lesson 6 - Dealing with Fractions & Decimals
(page 2 of 6)
---- This pre-algebra lesson explains how to solve equations that have fractions and decimals in them.

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YOUR TURN:

Solve

Sometimes, there are two fractions to deal with:

Solve

We'll need to ditch the 5 AND the 4... So, we'll multiply both sides by 5x4 = 20!

20( (3/5)x + 2 ) = 20(1/4) which gives ((20)(3)/5)x + 20(2) = (20)(1)/4 which gives 12x + 40 = 5 ditch the 40... 12x + 40 - 40 = 5 - 40 which gives 12x = -35 ditch the 12... 12x/12 = -35/12 which gives x = -35/12

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