3x-1=3(5x+7)

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Solution for 3x-1=3(5x+7) equation: 



3x-1=3(5x+7)

We move all terms to the left:

3x-1-(3(5x+7))=0



We calculate terms in parentheses: -(3(5x+7)), so:

3(5x+7)

We multiply parentheses

15x+21

Back to the equation:

-(15x+21)



We get rid of parentheses

3x-15x-21-1=0

We add all the numbers together, and all the variables

-12x-22=0

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

-12x=22

x=22/-12

x=-1+5/6

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