30/(4-x)=3(4+x)

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Solution for 30/(4-x)=3(4+x) equation: 



30/(4-x)=3(4+x)

We move all terms to the left:

30/(4-x)-(3(4+x))=0



Domain of the equation: (4-x)!=0

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

-x!=-4

x!=-4/-1

x!=+4

x∈R



We add all the numbers together, and all the variables

30/(-1x+4)-(3(x+4))=0

We multiply all the terms by the denominator


-((3(x+4)))*(-1x+4)+30=0



We calculate terms in parentheses: -((3(x+4)))*(-1x+4), so:

(3(x+4)))*(-1x+4

We add all the numbers together, and all the variables

-1x+(3(x+4)))*(+4

Back to the equation:

-(-1x+(3(x+4)))*(+4)



We add all the numbers together, and all the variables

-(-1x+(3(x+4)))*4+30=0

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

-(-1x+(3(x+4)))*4=-30

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