Question

3x + y = -4

x - 2y = -6


(6, -4)


(2, 2)


(-2, 2)


No Solution

Answer 1

Solve quickly by substitution: from 3x + y = -4, y = -4 - 3x. Substitute into x - 2y = -6:

x - 2(-4 - 3x) = -6 → x + 8 + 6x = -6 → 7x = -14 → x = -2.
Then y = -4 - 3(-2) = -4 + 6 = 2.

So the solution is (-2, 2).