(13y+1)×(7y-2)=(91y-3)(y+1) решите плиз

Question

(13y+1)×(7y-2)=(91y-3)(y+1) решите плиз

Answer 1

91у^2-26у+7у-2=91у^2 +91у-3у-3=-26у+7у-2=91у-3у-3=-19-2=88у-3=-19у-88у=-3+2=-107у=-1
у=1/107.