**Quote:**

multiply both sides by -1

y=\frac{-100,000}{(100+x)}+100

The anser given is

y=100-\frac{100,000}{(100+x)}

Are these the same things if this were so then

7-6

would eauly

-7+6 which it does not

Where am I going wrong

y in the both of the above scenario is the same if we keep x as a variable. 7-6 is not same as -7+6 since we know the exact value of each of the numbers.

The value of y in the above scenario depends on the value of x. If x is zero then y would be negative, if x >= 999900 then y is positive.

Hope I have not confused you further

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