if x=A and Y=b is the solution to the equations X-Y=2 and X+Y=4,then the value of a and b respectively
Answers
Answered by
22
Given,a+b=4-----------(1)
a-b=2---------(2)
Adding (1) and (2),
2a=6
a=3
Substituting 'a' in (1),
3+b=4
⇒b=4-3
⇒b=1
a-b=2---------(2)
Adding (1) and (2),
2a=6
a=3
Substituting 'a' in (1),
3+b=4
⇒b=4-3
⇒b=1
sandy21:
thanxx sir
Answered by
10
It is given
X = a
Y = b
So,
a + b = 4 ------(1) (Adding both equations)
a - b = 2--------(2)
________________
∴2a = 6
∴ a = 3
Putting a=3 in (1)
∴3 + b = 4
∴b = 1
X = a
Y = b
So,
a + b = 4 ------(1) (Adding both equations)
a - b = 2--------(2)
________________
∴2a = 6
∴ a = 3
Putting a=3 in (1)
∴3 + b = 4
∴b = 1
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