2x+4x=7(x+3)

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Solution for 2x+4x=7(x+3) equation: 



2x+4x=7(x+3)

We move all terms to the left:

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

We add all the numbers together, and all the variables

6x-(7(x+3))=0



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

7(x+3)

We multiply parentheses

7x+21

Back to the equation:

-(7x+21)



We get rid of parentheses

6x-7x-21=0

We add all the numbers together, and all the variables

-1x-21=0

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

-x=21

x=21/-1

x=-21

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