-x-21=10-4x

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Solution for -x-21=10-4x equation:



-x-21=10-4x
We move all terms to the left:
-x-21-(10-4x)=0
We add all the numbers together, and all the variables
-x-(-4x+10)-21=0
We add all the numbers together, and all the variables
-1x-(-4x+10)-21=0
We get rid of parentheses
-1x+4x-10-21=0
We add all the numbers together, and all the variables
3x-31=0
We move all terms containing x to the left, all other terms to the right
3x=31
x=31/3
x=10+1/3

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