Question

solve the simultaneous equation by elimination mathod and also write (x,y)=?

1)x+y=4 ; x-y=6​

Answer 1

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Answer 2

Answer:

x+y=4-------(1)

x-y=6--–----(2)

adding equation (1) and(2)

[x+y=4]+[x-y=6]

= 2x = 10

=x = 10/2

= x = 5

put x =5 in equation (1)

x+y=4

5+y=4

y=4-5

y=-1

so,(x,y)=(5,-1)