12x+7x=78

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Solution for 12x+7x=78 equation: 



12x+7x=78

We move all terms to the left:

12x+7x-(78)=0

We add all the numbers together, and all the variables

19x-78=0

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

19x=78

x=78/19

x=4+2/19

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