Question

if 2x*3y=18 and 22x*3y=36, then value of x is

Answer 1

2x*3y=18=>6xy=18=>xy=3.........1. 22x*3y=36=>66xy=36=>xy=36/66.......2. from 1 and2:-. xy+xy=1+36/66=>2xy=66+36/66=>2xy=102/66. =>xy=102/66/2=51/66. x=51/66y.ans.....