Question

dash is the solution of given simultaneous equation x-y=7,x+y=11​

Answer 1

Explanation:

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Answer 2

Answer:

x=9 & y=2

Explanation:

$x-y=7 \\ x+y=11 \\ - - - - - - - - \\ 2x = 18 \\ x = 9 \\ - - - --- \\ x+y=11 \\ 9 + y = 11 \\ y = 11 - 9 \\ y = 2$

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