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26-01-2018
Mathematics

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2/x+1/2=3/4 solve for x and explain

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26-01-2018

if you multiply everything by the common denominator 4x then the fractions cancel out.

4x(2/x) + 4x(1/2) = 4x(3/4)
denominators cancel out leaving...
8 + 2x = 3x
then just subtract 2x from both sides
8 = 3x - 2x
8 = x

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