15x-45=5x+75

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Solution for 15x-45=5x+75 equation: 



15x-45=5x+75

We move all terms to the left:

15x-45-(5x+75)=0

We get rid of parentheses

15x-5x-75-45=0

We add all the numbers together, and all the variables

10x-120=0

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

10x=120

x=120/10

x=12

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