7=2y/5-1

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Solution for 7=2y/5-1 equation: 


y in (-oo:+oo)

7 = (2*y)/5-1 // - (2*y)/5-1

1-((2*y)/5)+7 = 0

(-2/5)*y+1+7 = 0

8-2/5*y = 0 // - 8

-2/5*y = -8 // : -2/5

y = -8/(-2/5)

y = 20

y = 20

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