"write a second equation for the system so that it has infinitely many solutions"I'm confused

Our original equation is
[tex]4y=-3x+16[/tex]so we need an equivalent equation to this one, we can multiply all the equation by 3 and we get one
[tex]12y=-9x+48[/tex]so 12y=-9x+48 is an equation that gave us a system with infinite solutions