5x+15x=12

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Solution for 5x+15x=12 equation: 



5x+15x=12

We move all terms to the left:

5x+15x-(12)=0

We add all the numbers together, and all the variables

20x-12=0

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

20x=12

x=12/20

x=3/5

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