3(-5+4x)=9(-5*3+4x*3)=9(-15+12x)=9

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Solution for 3(-5+4x)=9(-5*3+4x*3)=9(-15+12x)=9 equation: 



3(-5+4x)=9(-5*3+4x*3)=9(-15+12x)=9

We move all terms to the left:

3(-5+4x)-(9(-5*3+4x*3))=0

We add all the numbers together, and all the variables

3(4x-5)-(9(4x*3-15))=0

We multiply parentheses

12x-(9(4x*3-15))-15=0



We calculate terms in parentheses: -(9(4x*3-15)), so:

9(4x*3-15)

We multiply parentheses

108x-135

Back to the equation:

-(108x-135)



We get rid of parentheses

12x-108x+135-15=0

We add all the numbers together, and all the variables

-96x+120=0

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

-96x=-120

x=-120/-96

x=1+1/4

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