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20-19.5p=-12.8-9.8p-19.99
We move all terms to the left:
20-19.5p-(-12.8-9.8p-19.99)=0
We add all the numbers together, and all the variables
-19.5p-(-9.8p-32.79)+20=0
We get rid of parentheses
-19.5p+9.8p+32.79+20=0
We add all the numbers together, and all the variables
-9.7p+52.79=0
We move all terms containing p to the left, all other terms to the right
-9.7p=-52.79
p=-52.79/-9.7
p=5+3.3255813953488/7.5193798449612
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