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900=16x+256
We move all terms to the left:
900-(16x+256)=0
We get rid of parentheses
-16x-256+900=0
We add all the numbers together, and all the variables
-16x+644=0
We move all terms containing x to the left, all other terms to the right
-16x=-644
x=-644/-16
x=40+1/4
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