7-y/4=9

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Solution for 7-y/4=9 equation: 


y in (-oo:+oo)

7-(y/4) = 9 // - 9

7-(y/4)-9 = 0

-1/4*y-2 = 0 // + 2

-1/4*y = 2 // : -1/4

y = 2/(-1/4)

y = -8

y = -8

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