7x+(-9)=30

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Solution for 7x+(-9)=30 equation: 



7x+(-9)=30

We move all terms to the left:

7x+(-9)-(30)=0

determiningTheFunctionDomain
7x-30+(-9)=0

We add all the numbers together, and all the variables

7x-39=0

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

7x=39

x=39/7

x=5+4/7

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