-57u-21u+90=-70-76u

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Solution for -57u-21u+90=-70-76u equation: 



-57u-21u+90=-70-76u

We move all terms to the left:

-57u-21u+90-(-70-76u)=0

We add all the numbers together, and all the variables

-57u-21u-(-76u-70)+90=0

We add all the numbers together, and all the variables

-78u-(-76u-70)+90=0

We get rid of parentheses

-78u+76u+70+90=0

We add all the numbers together, and all the variables

-2u+160=0

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

-2u=-160

u=-160/-2

u=+80

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