You can put this solution on YOUR website! Assuming the problem is: =
Cross multiply
:
(y+1)(y+4) = (y+10)(y-2)
FOIL
y^2 + 5y + 4 = y^2 + 8y - 20
:
Arrange the y's on the left
y^2 - y^2 + 5y - 8y = -20 - 4
:
-3y = -24
Which is
3y = 24
y =
y = 8
;
:
Check solution in original equation = =