4(u-9)-9=-4(-5u+9)-4u

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Solution for 4(u-9)-9=-4(-5u+9)-4u equation: 



4(u-9)-9=-4(-5u+9)-4u

We move all terms to the left:

4(u-9)-9-(-4(-5u+9)-4u)=0

We multiply parentheses

4u-(-4(-5u+9)-4u)-36-9=0



We calculate terms in parentheses: -(-4(-5u+9)-4u), so:

-4(-5u+9)-4u

We add all the numbers together, and all the variables

-4u-4(-5u+9)

We multiply parentheses

-4u+20u-36

We add all the numbers together, and all the variables

16u-36

Back to the equation:

-(16u-36)



We add all the numbers together, and all the variables

4u-(16u-36)-45=0

We get rid of parentheses

4u-16u+36-45=0

We add all the numbers together, and all the variables

-12u-9=0

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

-12u=9

u=9/-12

u=-3/4

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