20=6x+7(2x)

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Solution for 20=6x+7(2x) equation: 



20=6x+7(2x)

We move all terms to the left:

20-(6x+7(2x))=0

We add all the numbers together, and all the variables

-(+78x)+20=0

We get rid of parentheses

-78x+20=0

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

-78x=-20

x=-20/-78

x=10/39

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