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If 3x / 4 = 7 - x / 3, then x = what?
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If 3x / 4 = 7 - x / 3, then x = what?

User Josh Sobel
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1 Answer

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(3x)/(4) = 7-(x)/(3)

(3x*3)/(4*3) = (7*12)/(12) -(x*4)/(3*4)

(9x)/(12) = (84)/(12) -(4x)/(12)

12*( (9x)/(12) = (84)/(12) -(4x)/(12) )

9x=84-4x

13x=84

84/13


User RocketRaccoon
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8.6k points
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