Question

If x = 1 & y = a is the solution of the equation x + y = 9, then find a.​

Answer 1

Answer:

8 is the answer

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Answer 2

Answer:

$x = 1 \\ y = a \\ \\ x + y = 9 \\ 1 + a = 9 \\ a = 9 - 1 \\ \large a = \bf \underline{ \underline{ 8}}$