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7x-15y=2........(1)
x+2y =3..............(2)
From eq (2)
x = 3 - 2y .........(3)
put value of x in Eq (1)
7(3 - 2y) -15y =2
21-14y -15y =2
-14y -15y =2-21
-29y =-19
y = 19
29
put value of y in eq (2)
x+2y =3
x + 2 ×19=3
29
x+ 38 =3
29
x = 3- 38
29
x= 87-38
29
x= 49
29
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