11+10-x=21-x

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Solution for 11+10-x=21-x equation:



11+10-x=21-x
We move all terms to the left:
11+10-x-(21-x)=0
We add all the numbers together, and all the variables
-x-(-1x+21)+11+10=0
We add all the numbers together, and all the variables
-1x-(-1x+21)+21=0
We get rid of parentheses
-1x+1x-21+21=0
We add all the numbers together, and all the variables
=0
x=0/1
x=0

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