-72-12x=18-9x

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Solution for -72-12x=18-9x equation: 



-72-12x=18-9x

We move all terms to the left:

-72-12x-(18-9x)=0

We add all the numbers together, and all the variables

-12x-(-9x+18)-72=0

We get rid of parentheses

-12x+9x-18-72=0

We add all the numbers together, and all the variables

-3x-90=0

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

-3x=90

x=90/-3

x=-30

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