-x+21=-5x+17

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Solution for -x+21=-5x+17 equation: 



-x+21=-5x+17

We move all terms to the left:

-x+21-(-5x+17)=0

We add all the numbers together, and all the variables

-1x-(-5x+17)+21=0

We get rid of parentheses

-1x+5x-17+21=0

We add all the numbers together, and all the variables

4x+4=0

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

4x=-4

x=-4/4

x=-1

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