Question

Solve the following system by graphing
3x-y=5
X+2y=-3

Answer 1

3x - 1y = 5 ⇒ 3x - 1y = 5
1x + 2y = -3 ⇒ 3x + 6y = -9
7y = 14
7 7
y = 2
1x - 2y = -3
1x - 2(2) = -3
1x - 4 = -3
+4 +4
x = 1
(x, y) = (1, 2)