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p-0.20p=12
We simplify the equation to the form, which is simple to understand
p-0.20p=12
We move all terms containing p to the left and all other terms to the right.
+1p-0.2p=+12
We simplify left and right side of the equation.
+ 0.8p=+12
We divide both sides of the equation by 0.8 to get p.
p=15
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