Question

найдите корень уравнение 13-4.5y=2(3.7-0.5y)

Answer 1

13-4.5у=7.4-у
13-7.4=4.5у-у
5.6=3.5у
у=5.6/3.5
у=1.6

Answer 2

13-4.5y=7.4-u
-4.5+y=-13+7.4
-3.5y=-5.6
y=-5.6:(-3.5)
y=1.6