6.2y+2.9-3.4=8.5 помогите срочно

Question

6.2y+2.9-3.4=8.5 помогите срочно

Answer 1

6,2у+2,9-3,4=8,5
6,2у=8,5+3,4-2,9
6,2у=9
у=9 : 6,2
у=9/6,2=90/62
у=1_28/62 = 1_14/31