Question

y:2+y+y:3+y:4=25

Answer 1

\(\text{y : 2 + y + y : 3 + y : 4 = 25}\)

\(\text{1/2 .y + y + 1/3 . y + 1/4 . y = 25}\)

\(\text{y . (1/2 + 1/3 + 1/4 + 1) = 25}\)

\(\text{y . 25/12 = 25}\)

\(\text{y = 25 : 25/12 = 25 . 12/25}\)

\(\text{y = 12 }\)

Vậy \(y=12\)

Answer 2

\(y:2+y+y:3+y:4=25\\ y:\left(2+3+1+4\right)=25\\ y:10=25\\ y=25x10\\ y=250.\)

Answer 3

y = 12