2x+30=-x+9

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Solution for 2x+30=-x+9 equation: 



2x+30=-x+9

We move all terms to the left:

2x+30-(-x+9)=0

We add all the numbers together, and all the variables

2x-(-1x+9)+30=0

We get rid of parentheses

2x+1x-9+30=0

We add all the numbers together, and all the variables

3x+21=0

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

3x=-21

x=-21/3

x=-7

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