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4+2.25p=20+1
We move all terms to the left:
4+2.25p-(20+1)=0
We add all the numbers together, and all the variables
2.25p+4-21=0
We add all the numbers together, and all the variables
2.25p-17=0
We move all terms containing p to the left, all other terms to the right
2.25p=17
p=17/2.25
p=7+1/1.8
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