Question

INSTANT MEDAL! CHECK OUT ATTACHMENT

Answer 1

x+4y = -10 (multiply this wholly by 4)

4x-3y = -2


=> 4x + 16y = -40.

4x - 3y = -2

On subtracting we get

4x + 16 y - (4x - 3y) = -40 - (-2)

OR

19y = -38. I would advise you to try on yourself from here. :)

Answer 2

(-2, -4)

Answer 3

Nope y = -2.

Use y = -2 in x+4y = -10,

x + 4(-2) = -10,

x - 8 = -10 => x = -2. Ans = (-2,-2).