3x+30-10=-2x

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Solution for 3x+30-10=-2x equation: 



3x+30-10=-2x

We move all terms to the left:

3x+30-10-(-2x)=0

We add all the numbers together, and all the variables

3x-(-2x)+20=0

We get rid of parentheses

3x+2x+20=0

We add all the numbers together, and all the variables

5x+20=0

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

5x=-20

x=-20/5

x=-4

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