15x+45=18x+18

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Solution for 15x+45=18x+18 equation: 



15x+45=18x+18

We move all terms to the left:

15x+45-(18x+18)=0

We get rid of parentheses

15x-18x-18+45=0

We add all the numbers together, and all the variables

-3x+27=0

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

-3x=-27

x=-27/-3

x=+9

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