-8.9=-2.5+u/4

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Solution for -8.9=-2.5+u/4 equation: 



-8.9=-2.5+u/4

We move all terms to the left:

-8.9-(-2.5+u/4)=0

We add all the numbers together, and all the variables

-(u/4-2.5)-8.9=0

We get rid of parentheses

-u/4+2.5-8.9=0

We multiply all the terms by the denominator


-u+(2.5)*4-(8.9)*4=0

We add all the numbers together, and all the variables

-1u-25.6=0

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

-u=25.6

u=25.6/-1

u=-25+0.6/1

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