-30+45-5u=7(u-4)-7

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Solution for -30+45-5u=7(u-4)-7 equation: 



-30+45-5u=7(u-4)-7

We move all terms to the left:

-30+45-5u-(7(u-4)-7)=0

We add all the numbers together, and all the variables

-5u-(7(u-4)-7)+15=0



We calculate terms in parentheses: -(7(u-4)-7), so:

7(u-4)-7

We multiply parentheses

7u-28-7

We add all the numbers together, and all the variables

7u-35

Back to the equation:

-(7u-35)



We get rid of parentheses

-5u-7u+35+15=0

We add all the numbers together, and all the variables

-12u+50=0

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

-12u=-50

u=-50/-12

u=4+1/6

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