-13+3x=7(7-4x)

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Solution for -13+3x=7(7-4x) equation: 



-13+3x=7(7-4x)

We move all terms to the left:

-13+3x-(7(7-4x))=0

We add all the numbers together, and all the variables

3x-(7(-4x+7))-13=0



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

7(-4x+7)

We multiply parentheses

-28x+49

Back to the equation:

-(-28x+49)



We get rid of parentheses

3x+28x-49-13=0

We add all the numbers together, and all the variables

31x-62=0

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

31x=62

x=62/31

x=2

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