3a-(-7)=3(a+4)

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Solution for 3a-(-7)=3(a+4) equation: 



3a-(-7)=3(a+4)

We move all terms to the left:

3a-(-7)-(3(a+4))=0

We add all the numbers together, and all the variables

3a-(3(a+4))+7=0



We calculate terms in parentheses: -(3(a+4)), so:

3(a+4)

We multiply parentheses

3a+12

Back to the equation:

-(3a+12)



We get rid of parentheses

3a-3a-12+7=0

We add all the numbers together, and all the variables

-5!=0

There is no solution for this equation

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