Answer:
See below
Explanation:
You have two unknowns ( x and y) and only ONE equation....so there are infinite solutions for x and y .....but you can rewrite it for 'y'
3y + xy = 2x + 1 factor out 'y'
y ( 3+x) = 2x+1 divide both sides by (3+x)
y = (2x+1) / (3+x)