9x-15=12x+30

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Solution for 9x-15=12x+30 equation: 



9x-15=12x+30

We move all terms to the left:

9x-15-(12x+30)=0

We get rid of parentheses

9x-12x-30-15=0

We add all the numbers together, and all the variables

-3x-45=0

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

-3x=45

x=45/-3

x=-15

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