21+x=-5x+6

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Solution for 21+x=-5x+6 equation: 



21+x=-5x+6

We move all terms to the left:

21+x-(-5x+6)=0

We get rid of parentheses

x+5x-6+21=0

We add all the numbers together, and all the variables

6x+15=0

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

6x=-15

x=-15/6

x=-2+1/2

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