1/2y-9=1/7y

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Solution for 1/2y-9=1/7y equation: 


y in (-oo:+oo)

(1/2)*y-9 = (1/7)*y // - (1/7)*y

(1/2)*y-((1/7)*y)-9 = 0

(1/2)*y+(-1/7)*y-9 = 0

5/14*y-9 = 0 // + 9

5/14*y = 9 // : 5/14

y = 9/5/14

y = 126/5

y = 126/5

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