3(4x-5)=3(5x+7)

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Solution for 3(4x-5)=3(5x+7) equation: 



3(4x-5)=3(5x+7)

We move all terms to the left:

3(4x-5)-(3(5x+7))=0

We multiply parentheses

12x-(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

12x-15x-21-15=0

We add all the numbers together, and all the variables

-3x-36=0

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

-3x=36

x=36/-3

x=-12

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