15+7x=3(5+x)+4x

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Solution for 15+7x=3(5+x)+4x equation: 



15+7x=3(5+x)+4x

We move all terms to the left:

15+7x-(3(5+x)+4x)=0

We add all the numbers together, and all the variables

7x-(3(x+5)+4x)+15=0



We calculate terms in parentheses: -(3(x+5)+4x), so:

3(x+5)+4x

We add all the numbers together, and all the variables

4x+3(x+5)

We multiply parentheses

4x+3x+15

We add all the numbers together, and all the variables

7x+15

Back to the equation:

-(7x+15)



We get rid of parentheses

7x-7x-15+15=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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