2/7y+y-4=31

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Solution for 2/7y+y-4=31 equation: 


y in (-oo:+oo)

(2/7)*y+y-4 = 31 // - 31

(2/7)*y+y-31-4 = 0

9/7*y-35 = 0 // + 35

9/7*y = 35 // : 9/7

y = 35/9/7

y = 245/9

y = 245/9

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