Question

(50×y+160)-60=500 быстрее

Answer 1

(50y+160)-60=500;
50y+160=560;
50y=400;
y=8.

Answer 2

(50×y+160)-60=500
(50у+160) = 500 + 60
50у+160 = 560
50y = 560 - 160
50y = 400
y = 8