Cross Multiply By Kovan Learning Centre Math, 24Jul, 2019 Share https://www.youtube.com/watch?v=REKcuthHqAU Previous Simultaneous Equation July 24, 2019 Next Solving algebra and expansion algebra and factorisation July 24, 2019 No comment yet! You will be the first to comment. Add Comment: Cancel ReplyYour email address will not be published. Required fields are marked * Δ