4+y/7=9

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Solution for 4+y/7=9 equation: 


y in (-oo:+oo)

y/7+4 = 9 // - 9

y/7-9+4 = 0

1/7*y-5 = 0 // + 5

1/7*y = 5 // : 1/7

y = 5/1/7

y = 35

y = 35

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