-8.9=-1.4+u/3

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Solution for -8.9=-1.4+u/3 equation: 



-8.9=-1.4+u/3

We move all terms to the left:

-8.9-(-1.4+u/3)=0

We add all the numbers together, and all the variables

-(u/3-1.4)-8.9=0

We get rid of parentheses

-u/3+1.4-8.9=0

We multiply all the terms by the denominator


-u+(1.4)*3-(8.9)*3=0

We add all the numbers together, and all the variables

-1u-22.5=0

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

-u=22.5

u=22.5/-1

u=-22+0.5/1

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