Question

y+3/y-1=y+2/y-3

Answer 1

cross multiply

Answer 2

(y+3)(y-3) = (y+2)(y-1)

y^2 -9 = y^2 +y -2 ; put it all to one side

0 = y^2-y^2+y +9-2

0 = y-7

y = 7

Answer 3

y = -7.... i lost track of a sign :)

Answer 4

.....9-2 = 7 therefore

0 = y+7

y = -7

Answer 5

cross multiply
(y+3)(y-3)=(y+2)(y-1)
y^2-9=y^2+y-2
y^2 cancel
y=-7