10x-30=-10x-90

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Solution for 10x-30=-10x-90 equation: 



10x-30=-10x-90

We move all terms to the left:

10x-30-(-10x-90)=0

We get rid of parentheses

10x+10x+90-30=0

We add all the numbers together, and all the variables

20x+60=0

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

20x=-60

x=-60/20

x=-3

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