42/12=4x+3x

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Solution for 42/12=4x+3x equation: 



42/12=4x+3x

We move all terms to the left:

42/12-(4x+3x)=0

We add all the numbers together, and all the variables

-(+7x)+42/12=0

We get rid of parentheses

-7x+42/12=0

We multiply all the terms by the denominator


-7x*12+42=0

Wy multiply elements

-84x+42=0

We move all terms containing x to the left, all other terms to the right

-84x=-42

x=-42/-84

x=1/2

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