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221=-x+58
We move all terms to the left:
221-(-x+58)=0
We add all the numbers together, and all the variables
-(-1x+58)+221=0
We get rid of parentheses
1x-58+221=0
We add all the numbers together, and all the variables
x+163=0
We move all terms containing x to the left, all other terms to the right
x=-163
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