-1+3x=4x+3(x-7)

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Solution for -1+3x=4x+3(x-7) equation: 



-1+3x=4x+3(x-7)

We move all terms to the left:

-1+3x-(4x+3(x-7))=0



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

4x+3(x-7)

We multiply parentheses

4x+3x-21

We add all the numbers together, and all the variables

7x-21

Back to the equation:

-(7x-21)



We get rid of parentheses

3x-7x+21-1=0

We add all the numbers together, and all the variables

-4x+20=0

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

-4x=-20

x=-20/-4

x=+5

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