43=7-9u(-8)

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Solution for 43=7-9u(-8) equation: 



43=7-9u(-8)

We move all terms to the left:

43-(7-9u(-8))=0



We calculate terms in parentheses: -(7-9u(-8)), so:

7-9u(-8)

determiningTheFunctionDomain
-9u(-8)+7

We multiply parentheses

72u+7

Back to the equation:

-(72u+7)



We get rid of parentheses

-72u-7+43=0

We add all the numbers together, and all the variables

-72u+36=0

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

-72u=-36

u=-36/-72

u=1/2

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