-20=-v/2 - solution

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Solution for -20=-v/2 equation:

v in (-oo:+oo)

-20 = -v/2 // + -v/2

-(-v/2)-20 = 0

(1/2)*v-20 = 0

1/2*v-20 = 0 // + 20

1/2*v = 20 // : 1/2

v = 20/1/2

v = 40

v = 40

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