138=2x+(4x+9)

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Solution for 138=2x+(4x+9) equation: 



138=2x+(4x+9)

We move all terms to the left:

138-(2x+(4x+9))=0



We calculate terms in parentheses: -(2x+(4x+9)), so:

2x+(4x+9)

We get rid of parentheses

2x+4x+9

We add all the numbers together, and all the variables

6x+9

Back to the equation:

-(6x+9)



We get rid of parentheses

-6x-9+138=0

We add all the numbers together, and all the variables

-6x+129=0

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

-6x=-129

x=-129/-6

x=21+1/2

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