Answer :
3x + 5y = 50
3(3y - 2) + 5y = 50
9y - 2 + 5y = 50
9y + 5y - 2 = 50
14y - 2 = 50
+2 +2
14y = 48
14 14
y = 3 3/7
3x + 5(3 3/7) = 50
3x + 17 1/7 = 50
-17 1/7 -17 1/7
3x = 32 6/7
3 3
x = 10 20/21
(x, y) = (10 20/21, 3 3/7)
3(3y - 2) + 5y = 50
9y - 2 + 5y = 50
9y + 5y - 2 = 50
14y - 2 = 50
+2 +2
14y = 48
14 14
y = 3 3/7
3x + 5(3 3/7) = 50
3x + 17 1/7 = 50
-17 1/7 -17 1/7
3x = 32 6/7
3 3
x = 10 20/21
(x, y) = (10 20/21, 3 3/7)
