3x+10+x+11=-5x+21

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Solution for 3x+10+x+11=-5x+21 equation: 



3x+10+x+11=-5x+21

We move all terms to the left:

3x+10+x+11-(-5x+21)=0

We add all the numbers together, and all the variables

4x-(-5x+21)+21=0

We get rid of parentheses

4x+5x-21+21=0

We add all the numbers together, and all the variables

9x=0

x=0/9

x=0

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