solve the equations pairof equations by subsitution method only -: 7x-15y=2 ,x +2y = 3
Piyushzawar:
y=19/29 and x=49/29
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7x-15y=2.......(1)
x+2y=3..........(2)
From (2),
x=3-2y............(3)
(3) in (1)
7(3-2y)-15y=2
21-14y-15y=2
21-29y=2
29y=1
y=19/29...........(4)
(4) in (3)
x=3-2(19/29)
x=3-38/29
x=87-38/29
x=49/29
Hope it helps you!
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