12x+5x-3=84

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Solution for 12x+5x-3=84 equation: 



12x+5x-3=84

We move all terms to the left:

12x+5x-3-(84)=0

We add all the numbers together, and all the variables

17x-87=0

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

17x=87

x=87/17

x=5+2/17

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