370+12x=280+15x

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Solution for 370+12x=280+15x equation: 



370+12x=280+15x

We move all terms to the left:

370+12x-(280+15x)=0

We add all the numbers together, and all the variables

12x-(15x+280)+370=0

We get rid of parentheses

12x-15x-280+370=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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