5/14y-12=4/21y-7,5 решите пж

Question

5/14y-12=4/21y-7,5 решите пж

Answer 1

5/14у-12 = 4/21у-7,5
5/14y-4/21y = 12-7,5
7/42y = 4,5
y = 45/10*6/1
y = 27