5y-15/7y-21

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Solution for 5y-15/7y-21 equation: 


y in (-oo:+oo)

5*y-((15/7)*y)-21 = 0

5*y+(-15/7)*y-21 = 0

20/7*y-21 = 0 // + 21

20/7*y = 21 // : 20/7

y = 21/20/7

y = 147/20

y = 147/20

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