78=2(2x+6)+2(x)

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Solution for 78=2(2x+6)+2(x) equation: 



78=2(2x+6)+2(x)

We move all terms to the left:

78-(2(2x+6)+2(x))=0



We calculate terms in parentheses: -(2(2x+6)+2x), so:

2(2x+6)+2x

We add all the numbers together, and all the variables

2x+2(2x+6)

We multiply parentheses

2x+4x+12

We add all the numbers together, and all the variables

6x+12

Back to the equation:

-(6x+12)



We get rid of parentheses

-6x-12+78=0

We add all the numbers together, and all the variables

-6x+66=0

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

-6x=-66

x=-66/-6

x=+11

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