Answer:
4x=8y
Step-by-step explanation:
Ok so a number multiplied by 4 equal a number multiplied by 8.
Both numbers can't have the same variable because if they had the same varable that means they are the same number which in that case means Marcy is wrong but we know she is right because Mr.Kim said so.
let's plug in numbers. If they had the same variable it would be:-4x=8x
let x=2, 4(2)=8(2)
8=16 not true
if the variables were not the same:-4x=8y
let x=4
let y=2 4(4)=8(2)
16=16 true