In problems 3 and 4 find the solution the choice of method i

In problems 3 and 4 find the solution (the choice of method is yours): {3x-6y = 3 7x - 4y 11/3 x = -1/3 and y = -1/3 x = 1/3 and y = -1/3 x = 2/3 and y =4/3 no solution 3x + 4y = 10.5 3x-5y = -9.75 x = 1.5; y = -2.25 x = ~0.5; y = 2.5 x = 0.5; y = 2.25 infinitely many solutions

Solution

3.

3x-6y=3
Therefore,
12x-24y=12..1

7x-4y=11/3
21x-24y=11..2

(2)-(1), 9x=-1, x=-1/9 and 3(-1/9) -6y=3,
so, y=-5/9