126=-7(1x-4)-7x

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Solution for 126=-7(1x-4)-7x equation: 



126=-7(1x-4)-7x

We move all terms to the left:

126-(-7(1x-4)-7x)=0

We add all the numbers together, and all the variables

-(-7(x-4)-7x)+126=0



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

-7(x-4)-7x

We add all the numbers together, and all the variables

-7x-7(x-4)

We multiply parentheses

-7x-7x+28

We add all the numbers together, and all the variables

-14x+28

Back to the equation:

-(-14x+28)



We get rid of parentheses

14x-28+126=0

We add all the numbers together, and all the variables

14x+98=0

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

14x=-98

x=-98/14

x=-7

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