Question

plzzz plzzz tell how comes by solving this step by step
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Answer 1

Answer:

-1/15+1/20 =1/v

(-4+3)/60=1/v. [Taking LCM of 15 and 20]

-1=1/v×60 [Multiplying by 60 both sides]

v=-60 cm [ Multiplying -v both sides]

Hope you understood

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