5x+8+7x=80

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Solution for 5x+8+7x=80 equation: 



5x+8+7x=80

We move all terms to the left:

5x+8+7x-(80)=0

We add all the numbers together, and all the variables

12x-72=0

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

12x=72

x=72/12

x=6

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