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

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



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

We move all terms to the left:

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

We multiply parentheses

-3x^2+7x-12x-(7x-3x(x+4))=0



We calculate terms in parentheses: -(7x-3x(x+4)), so:

7x-3x(x+4)

We multiply parentheses

-3x^2+7x-12x

We add all the numbers together, and all the variables

-3x^2-5x

Back to the equation:

-(-3x^2-5x)



We add all the numbers together, and all the variables

-3x^2-(-3x^2-5x)-5x=0

We get rid of parentheses

-3x^2+3x^2+5x-5x=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

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