-3u+11u+17=9-7(20u+20)

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Solution for -3u+11u+17=9-7(20u+20) equation: 



-3u+11u+17=9-7(20u+20)

We move all terms to the left:

-3u+11u+17-(9-7(20u+20))=0

We add all the numbers together, and all the variables

8u-(9-7(20u+20))+17=0



We calculate terms in parentheses: -(9-7(20u+20)), so:

9-7(20u+20)

determiningTheFunctionDomain
-7(20u+20)+9

We multiply parentheses

-140u-140+9

We add all the numbers together, and all the variables

-140u-131

Back to the equation:

-(-140u-131)



We get rid of parentheses

8u+140u+131+17=0

We add all the numbers together, and all the variables

148u+148=0

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

148u=-148

u=-148/148

u=-1

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