40 - 20у -100 = -3у - 230

Question

40 - 20у -100 = -3у - 230

Answer 1

-20y + 3y = - 40 + 100 -230
17y = -170
y = -10

Answer 2

40-2y-100=-3y-230
-2y+3y=-230-40+100
y=-170