-120+3x=90+10x

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Solution for -120+3x=90+10x equation: 



-120+3x=90+10x

We move all terms to the left:

-120+3x-(90+10x)=0

We add all the numbers together, and all the variables

3x-(10x+90)-120=0

We get rid of parentheses

3x-10x-90-120=0

We add all the numbers together, and all the variables

-7x-210=0

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

-7x=210

x=210/-7

x=-30

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