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Exercise in the first volume of mathematics in the second day of junior high school
F(x)=f(x)+g(x)

So f (a) = f (a)+g (a)

2=3/a？ - 1+ 1

This formula is a bit vague. F (x) = 3/x？ -1, I wonder if it's 3/x? -1 or 3/(x? - 1)

If the first one, then 2=3/a? So a is equal to 3/2 of the plus and minus sign.

If the second one, what about A? -1 = 3, so a equals plus or minus 2.

Judging from the answer, the second possibility is great.

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