3x + 2y = 6
4x + y = 1
Solve the second equation for y:
y = -4x + 1
Substitute -4x + 1 for y in the first equation.
3x + 2(-4x + 1) = 6
3x - 8x + 2 = 6
-5x = 4
x = -4/5
Now substitute x with -4/5 in the first original equation.
3x + 2y = 6
3 * (-4/5) + 2y = 6
-12/5 + 2y = 6
-12 + 10y = 30
10y = 42
y = 42/10
y = 21/5
Solution: (-4/5, 21/5)