Answers

2014-02-26T13:36:12+05:30
45x + 9y - 72 = 0
=> y = (72 - 45x)/9 = 8 + 5x
0
2014-02-28T13:03:35+05:30
9y=72-45x
9y=9(8-5y)
so
y=8-5x
0