First ask yourself - what is the formula for Direct Variation?
When you google this - you'll find that this formula is shown as \(\large \color{green}{ y = kx}\).
We've got \(\large \color{red}{-7y=-3x}\)
How do we change this to fit the form of direct variation? We divide both sides of the //equation by -7 \[\large \cfrac{-7y}{-7} = \cfrac{-3}{-7}x\] Simplifying both sides of the equation, what do we get?