M<5=? what’s it equal

For the equation below, x is the input and y is the output. y = -4x + 3 if the input is -8, then the output is

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

Let event a = you roll an even number on the first cube.let event b = you roll a 6 on the second cube.are the events independent or dependent? why?