2(u-1)-7=-2(-9u+9)-u

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Solution for 2(u-1)-7=-2(-9u+9)-u equation: 



2(u-1)-7=-2(-9u+9)-u

We move all terms to the left:

2(u-1)-7-(-2(-9u+9)-u)=0

We multiply parentheses

2u-(-2(-9u+9)-u)-2-7=0



We calculate terms in parentheses: -(-2(-9u+9)-u), so:

-2(-9u+9)-u

We add all the numbers together, and all the variables

-1u-2(-9u+9)

We multiply parentheses

-1u+18u-18

We add all the numbers together, and all the variables

17u-18

Back to the equation:

-(17u-18)



We add all the numbers together, and all the variables

2u-(17u-18)-9=0

We get rid of parentheses

2u-17u+18-9=0

We add all the numbers together, and all the variables

-15u+9=0

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

-15u=-9

u=-9/-15

u=3/5

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