120=157-u

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Solution for 120=157-u equation: 



120=157-u

We move all terms to the left:

120-(157-u)=0

We add all the numbers together, and all the variables

-(-1u+157)+120=0

We get rid of parentheses

1u-157+120=0

We add all the numbers together, and all the variables

u-37=0

We move all terms containing u to the left, all other terms to the right

u=37

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