Solve for p
p=0
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5p-4p=200p
Multiply both sides of the equation by 20, the least common multiple of 4,5.
p=200p
Combine 5p and -4p to get p.
p-200p=0
Subtract 200p from both sides.
-199p=0
Combine p and -200p to get -199p.
p=0
Product of two numbers is equal to 0 if at least one of them is 0. Since -199 is not equal to 0, p must be equal to 0.
Examples
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