(7x+9=-75)

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Solution for (7x+9=-75) equation: 



(7x+9=-75)

We move all terms to the left:

(7x+9-(-75))=0



We calculate terms in parentheses: +(7x+9-(-75)), so:

7x+9-(-75)

We add all the numbers together, and all the variables

7x+84

Back to the equation:

+(7x+84)



We get rid of parentheses

7x+84=0

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

7x=-84

x=-84/7

x=-12

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