Question

pls answer questions​

Answer 1

Step-by-step explanation:

The unit’s place digit is = x Sum of two digits = 9 Then, Ten’s digit = 9 – x So, The number = 10 (9 – x) + x = 90 – 10x + x = 90 – 9xRead more on Sarthaks.com - https://www.sarthaks.com/849101/in-a-2-digit-number-the-units-place-digit-is-x-if-the-sum-of-digits-be-9-then-the-number-is-10x-9

Answer 2

Answer:

90-9x

Step-by-step explanation:

Step 1:

As we know, a 2 digit number exists in the form 10a+b.

Step 2:

Here 9-x works as a and x works as b.

Step 3:

Now by putting the respective values of a and b, we get 10a+b=10(9-x)+x.

Step 4:

By solving it further,you can get the answer which is 90-9x.

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