Question

4.
If x = a, y=b, is the solution of the systems of equations x-y = 2 and x+y = 4 then find the
values of a and b.
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Answer 1

Answer:

x=a , y=b

x-y = 2. x= 2+y

x+y = 4

2+y+y=4

2+2y=4

2y=2

y=1=b

x=2+1

x=3=a