Question

помогите решить уравнение
1/3y+5/9=7,2​

Answer 1

1/3y+5/9=72/10

1/3y = 72/10 - 5/9

1/3y = 648/90 - 50/90

1/3y = 598/90

y = 598/90 * 3/1 = 598/30 = 19 28/30 = 19 14/15