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2p=2v+2p\left(-\frac{1}{2}\right)
Variable p cannot be equal to 0 since division by zero is not defined. Multiply both sides of the equation by 2p, the least common multiple of p,2.
2p=2v-p
Multiply 2 and -\frac{1}{2} to get -1.
2p+p=2v
Add p to both sides.
3p=2v
Combine 2p and p to get 3p.
\frac{3p}{3}=\frac{2v}{3}
Divide both sides by 3.
p=\frac{2v}{3}
Dividing by 3 undoes the multiplication by 3.
p=\frac{2v}{3}\text{, }p\neq 0
Variable p cannot be equal to 0.
2p=2v+2p\left(-\frac{1}{2}\right)
Multiply both sides of the equation by 2p, the least common multiple of p,2.
2p=2v-p
Multiply 2 and -\frac{1}{2} to get -1.
2v-p=2p
Swap sides so that all variable terms are on the left hand side.
2v=2p+p
Add p to both sides.
2v=3p
Combine 2p and p to get 3p.
\frac{2v}{2}=\frac{3p}{2}
Divide both sides by 2.
v=\frac{3p}{2}
Dividing by 2 undoes the multiplication by 2.