143=255-u

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Solution for 143=255-u equation:



143=255-u
We move all terms to the left:
143-(255-u)=0
We add all the numbers together, and all the variables
-(-1u+255)+143=0
We get rid of parentheses
1u-255+143=0
We add all the numbers together, and all the variables
u-112=0
We move all terms containing u to the left, all other terms to the right
u=112

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