Question

X/3 = y/2 2x + 5y = 32

Answer 1

x/3=y/2

=> 2x/6=5y/10=2x+5y/6+10=32/16=2

+, x/3=2 => x=6

+, y/2=2 => y=4

Vậy ....

Answer 2

Ta có : \(\frac{x}{3}=\frac{y}{2}\Leftrightarrow2x=3y\Rightarrow x=\frac{3y}{2}\)

Thay \(x=\frac{3y}{2}\)vào biểu thức \(2x+5y=32\);ta được: \(\frac{3y.2}{2}+5y=32\)

\(\Leftrightarrow\frac{6y}{2}+5y=32\Leftrightarrow3y+5y=32\Leftrightarrow8y=32\Leftrightarrow y=4\)

\(\Rightarrow x=\frac{3.4}{2}=6\)

Vậy x ; y = {6 ; 4}