10(u-9)-10=-70

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Solution for 10(u-9)-10=-70 equation: 



10(u-9)-10=-70

We move all terms to the left:

10(u-9)-10-(-70)=0

We add all the numbers together, and all the variables

10(u-9)+60=0

We multiply parentheses

10u-90+60=0

We add all the numbers together, and all the variables

10u-30=0

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

10u=30

u=30/10

u=3

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