138=6x-4(4+7x)

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Solution for 138=6x-4(4+7x) equation: 



138=6x-4(4+7x)

We move all terms to the left:

138-(6x-4(4+7x))=0

We add all the numbers together, and all the variables

-(6x-4(7x+4))+138=0



We calculate terms in parentheses: -(6x-4(7x+4)), so:

6x-4(7x+4)

We multiply parentheses

6x-28x-16

We add all the numbers together, and all the variables

-22x-16

Back to the equation:

-(-22x-16)



We get rid of parentheses

22x+16+138=0

We add all the numbers together, and all the variables

22x+154=0

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

22x=-154

x=-154/22

x=-7

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