Answer:
(-2, 1) is the only solution
Explanation:
all other answers are not a solution.
3x - 2y = -8
6x + 7y = -5
substitute
(-2, 1)
3 * -2 - 2 * 1 = ?
-6 - 2 = -8
and
6 * -2 + 7 * 1 = ?
-12 + 7 = -5
all other subitutions do not make it a proper solution:
substitute
(5, -5)
3 * 5 - 2 * -5 = ?
15 - -10 = 25
25
-8
since the values have to be true for both equations this is not a solution, there is no need to do the second equation.
repeat this with the remaining
your answers are
(-2, 1) - yes
(-4, -2) - no
(7, 3) - no
(5, -5) - no
hope this helps:)