
Yefim S. answered 04/05/21
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WE separate variables and integrate: ∫dy/y2 = ∫dx/(2x + 3); -1/y = 1/2lnI2x + 3I + C; If x = - 1 y = 5;
so, - 1/5 = 1/2ln1 + C; C = -1/5;-1/y = 1/2lnI2x + 3I - 1/5