Answer :
-3x - 3y = 3 ⇒ -3x - 3y = 3
5x + 1y = -17 ⇒ -15x - 3y = 51
12x = -48
12 12
x = -4
5x + y = -17
5(-4) + y = -17
-20 + y = -17
+ 20 + 20
y = 3
(x, y) = (-4, 3)
5x + 1y = -17 ⇒ -15x - 3y = 51
12x = -48
12 12
x = -4
5x + y = -17
5(-4) + y = -17
-20 + y = -17
+ 20 + 20
y = 3
(x, y) = (-4, 3)