21+9+4x-5x=8x-7x+4+6

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Solution for 21+9+4x-5x=8x-7x+4+6 equation: 



21+9+4x-5x=8x-7x+4+6

We move all terms to the left:

21+9+4x-5x-(8x-7x+4+6)=0

We add all the numbers together, and all the variables

4x-5x-(x+10)+21+9=0

We add all the numbers together, and all the variables

-1x-(x+10)+30=0

We get rid of parentheses

-1x-x-10+30=0

We add all the numbers together, and all the variables

-2x+20=0

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

-2x=-20

x=-20/-2

x=+10

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