100=4(7+3x)

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Solution for 100=4(7+3x) equation: 



100=4(7+3x)

We move all terms to the left:

100-(4(7+3x))=0

We add all the numbers together, and all the variables

-(4(3x+7))+100=0



We calculate terms in parentheses: -(4(3x+7)), so:

4(3x+7)

We multiply parentheses

12x+28

Back to the equation:

-(12x+28)



We get rid of parentheses

-12x-28+100=0

We add all the numbers together, and all the variables

-12x+72=0

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

-12x=-72

x=-72/-12

x=+6

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