The sum of the reversed number and the original number is 154. find the original number, if the ones digit in it is 2 less than the tens digit.

The number is 86

Step-by-step explanation:

Let the number be  , then the reverse is

The sum of the reversed number and the original number is 154,

We simplify this to get:

....eqn(1)

If the ones digit in it is 2 less than the tens digit, then

....eqn(2)

Putt equation (2) in (1)

Put x=8 in the second equation:

The original number is 86

the line of

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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