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

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



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

We move all terms to the left:

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

We multiply parentheses

3x-(3(5x-7))+15=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+15=0

We add all the numbers together, and all the variables

-12x+36=0

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

-12x=-36

x=-36/-12

x=+3

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