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4p-9=2p/21
We move all terms to the left:
4p-9-(2p/21)=0
We add all the numbers together, and all the variables
4p-(+2p/21)-9=0
We get rid of parentheses
4p-2p/21-9=0
We multiply all the terms by the denominator
4p*21-2p-9*21=0
We add all the numbers together, and all the variables
-2p+4p*21-189=0
Wy multiply elements
-2p+84p-189=0
We add all the numbers together, and all the variables
82p-189=0
We move all terms containing p to the left, all other terms to the right
82p=189
p=189/82
p=2+25/82
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