Answer :
5x - 3y = 11 ⇒ 5x - 3y = 11 ⇒ 5x - 3y = 11
x - 2y = 2 ⇒ -5(x - 3y) = 2 ⇒ -5x + 15y = 2
12y = 13
12 12
y = 1 1/12
5x - 3(1 1/12) = 11
5x - 3 1/4 = 11
+3 1/4 +3 1/4
5x = 14 1/4
5 5
x = 2 17/20
(x, y) = (2 17/20, 1 1/12)
x - 2y = 2 ⇒ -5(x - 3y) = 2 ⇒ -5x + 15y = 2
12y = 13
12 12
y = 1 1/12
5x - 3(1 1/12) = 11
5x - 3 1/4 = 11
+3 1/4 +3 1/4
5x = 14 1/4
5 5
x = 2 17/20
(x, y) = (2 17/20, 1 1/12)
