Preston's Health Foods makes a mixed nut blend that contains 26% cashews

Preston's Health Foods makes a mixed nut blend that contains 26% cashews. Simon, one of the workers at the plant, has 9 kilograms of nuts that are 30% cashews. He also has a large supply of mixed nuts that contain 22% cashews. How many kilograms of the 22% cashew mix does Simon need to add to the 30% cashew mix to obtain a mix that is 26% cashews?

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · dev #179