Question

Find value of x and y in :
1/7x + 1/6y =3
1/2x - 1/3y =5
BY SUBSITUTING METHOD.

Answer 1

1/6 y = 3 - 1/7 x
so,
1/3 y = 6 - 2/7 x
Now use that in the other equation:
1/2 x - (6 - 2/7 x) = 5
11/14 x = 11
x = 14

or, you can use elimination.
since 1/3 = 2/6,

2/7 x + 1/3 y = 6
1/2 x - 1/3 y = 5

Now add the two equations to get rid of the y:

11/14 x = 11
so, x = 14

Now use that to find y.

Answer 2

11/x-7/y=1 9/x-4y=6

Answer 3

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