3+8x=2121-x

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Solution for 3+8x=2121-x equation: 



3+8x=2121-x

We move all terms to the left:

3+8x-(2121-x)=0

We add all the numbers together, and all the variables

8x-(-1x+2121)+3=0

We get rid of parentheses

8x+1x-2121+3=0

We add all the numbers together, and all the variables

9x-2118=0

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

9x=2118

x=2118/9

x=235+1/3

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