Question

Answer 1

\(x-24=y\Leftrightarrow x-y=24\)

Áp dụng t/c dtsbn ta có:

\(\dfrac{x}{7}=\dfrac{y}{3}=\dfrac{x-y}{7-3}=\dfrac{24}{4}=6\)

\(\dfrac{x}{7}=6\Rightarrow x=42\\ \dfrac{y}{3}=6\Rightarrow y=18\)

Answer 2

Áp dụng t/c dtsbn ta có:

x7=6⇒x=42y3=6⇒y=18