Posted by Mayank on Monday, July 16, 2012 at 2:32am.
Solve:
3x + 7y + 5= 0
4x  3y  8 = 0
Find p; if:
px + y  1= 0

Math  Shen, Monday, July 16, 2012 at 3:52am
3x+7y=5 (i)
4x3y=8 (ii)
(i)x 4:
12x+28y=20 (iii)
(ii)x 3:
12x9y=24 (iv)
(iv)(iii):
37y=44
y=44/37
subs y into (i):
3x+7(44/37)=5
3x= 5+308/37
x=148/37

Math  fix  Steve, Monday, July 16, 2012 at 11:11am
3x = 185/37 + 308/37 = 123/37
x = 41/37
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