To solve the equation \( 7y = 12x \) for \( y \), we can divide both sides of the equation by 7:
\[ y = \frac{12x}{7} \]
This simplifies to:
\[ y = \frac{12}{7}x \]
This corresponds to the response:
y = 712x (y is equal to 7 over 12 x)
The notation seems slightly off with "712x" which looks like a typographical error. The more precise answer should indeed be "y = 12/7 x."