x+3=7x-3(x+5)

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



x+3=7x-3(x+5)

We move all terms to the left:

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



We calculate terms in parentheses: -(7x-3(x+5)), so:

7x-3(x+5)

We multiply parentheses

7x-3x-15

We add all the numbers together, and all the variables

4x-15

Back to the equation:

-(4x-15)



We get rid of parentheses

x-4x+15+3=0

We add all the numbers together, and all the variables

-3x+18=0

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

-3x=-18

x=-18/-3

x=+6

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