Question

If we have two variables x and y when x=a and y=b is the solution of equations x-y=2 and x+y=4, then what will be the value of a and b.

Answer 1

X-y=2,x+y=4
x=a
,y=b
x=2+y put in x+y=4
2+2y=4
y=1=b
a=3

Answer 2

Answer:

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