Question

if -1is smaller than x abd 2is bigger than x and 1is smaller than y and 3is bigger than y find the least value of 2y-3x​

Answer 1

l solved your equation and you have to find a common denominator first, which is 21. Then you multiply 7(x+1) + 3(x+2), all that over 21, which equals 2. After a few steps, youll have 10x +13=42, then 10x=29, and finally, x=10/29. I hope this helps, but like I said, Sal teaches how to solve those types of equations, just watch "solving rational equations" and youll be fine!