30=3(7+g)

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Solution for 30=3(7+g) equation: 



30=3(7+g)

We move all terms to the left:

30-(3(7+g))=0

We add all the numbers together, and all the variables

-(3(g+7))+30=0



We calculate terms in parentheses: -(3(g+7)), so:

3(g+7)

We multiply parentheses

3g+21

Back to the equation:

-(3g+21)



We get rid of parentheses

-3g-21+30=0

We add all the numbers together, and all the variables

-3g+9=0

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

-3g=-9

g=-9/-3

g=+3

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