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850=278+50p
We move all terms to the left:
850-(278+50p)=0
We add all the numbers together, and all the variables
-(50p+278)+850=0
We get rid of parentheses
-50p-278+850=0
We add all the numbers together, and all the variables
-50p+572=0
We move all terms containing p to the left, all other terms to the right
-50p=-572
p=-572/-50
p=11+11/25
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