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-15=8-13p+11p
We move all terms to the left:
-15-(8-13p+11p)=0
We add all the numbers together, and all the variables
-(-2p+8)-15=0
We get rid of parentheses
2p-8-15=0
We add all the numbers together, and all the variables
2p-23=0
We move all terms containing p to the left, all other terms to the right
2p=23
p=23/2
p=11+1/2
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