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x^2+(22-x)^2=250
We move all terms to the left:
x^2+(22-x)^2-(250)=0
We add all the numbers together, and all the variables
x^2+(-1x+22)^2-250=0
We move all terms containing x to the left, all other terms to the right
x^2+(-1x+22)^2=250
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