Well if 4 blue circles + 1 red triangle = 2 green squares + 1 red triangle, then 2 blue circles = 1 green square
Then 3 red + 2 blue = 1 green + 2 blue, so 3 red = 1 green
If we know these facts then
3 red = 2 blue = 1 green
So the bottom one is 6 reds = 2 greens, or 1 green + 2 blue.
This makes my head hurt. They’re making it harder than it is.
Hope I didn’t confuse you more.