solve the following pair of linear equation
X-y=3
2x+y=9
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Adding both the equations,
x - y + 2x + y = 3 + 9
3x = 12
x = 12/3 = 4
Substituting this value of x in first equation,
x - y = 3
Since x = 4,
4 - y = 3
y = 4 - 3 = 1
Therefore, x = 4 and y = 1
x - y + 2x + y = 3 + 9
3x = 12
x = 12/3 = 4
Substituting this value of x in first equation,
x - y = 3
Since x = 4,
4 - y = 3
y = 4 - 3 = 1
Therefore, x = 4 and y = 1
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