(3x=7)+(x+15)

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Solution for (3x=7)+(x+15) equation: 



(3x=7)+(x+15)

We move all terms to the left:

(3x-(7)+(x+15))=0



We calculate terms in parentheses: +(3x-7+(x+15)), so:

3x-7+(x+15)

determiningTheFunctionDomain
3x+(x+15)-7

We get rid of parentheses

3x+x+15-7

We add all the numbers together, and all the variables

4x+8

Back to the equation:

+(4x+8)



We get rid of parentheses

4x+8=0

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

4x=-8

x=-8/4

x=-2

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