8x+5x=84

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Solution for 8x+5x=84 equation: 



8x+5x=84

We move all terms to the left:

8x+5x-(84)=0

We add all the numbers together, and all the variables

13x-84=0

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

13x=84

x=84/13

x=6+6/13

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