9x-15-2x=3(-20+30x)

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Solution for 9x-15-2x=3(-20+30x) equation: 



9x-15-2x=3(-20+30x)

We move all terms to the left:

9x-15-2x-(3(-20+30x))=0

We add all the numbers together, and all the variables

9x-2x-(3(30x-20))-15=0

We add all the numbers together, and all the variables

7x-(3(30x-20))-15=0



We calculate terms in parentheses: -(3(30x-20)), so:

3(30x-20)

We multiply parentheses

90x-60

Back to the equation:

-(90x-60)



We get rid of parentheses

7x-90x+60-15=0

We add all the numbers together, and all the variables

-83x+45=0

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

-83x=-45

x=-45/-83

x=45/83

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