thirteen subtracted by a number is -5. find the number

Question

thirteen subtracted by a number is -5. find the number

Answer 1

Answer: 18

Explanation:

We will use x to represent the unknown number we are trying to find. The question we are trying to answer is what is the number x, so that when we subtract x from 13, we get -5. In other words, 13 minus what is equal to -5. Using x as the symbol for the unknown number, we can re-write this question as an equation:

13 - x = -5.

Next, we solve for x:

13 - x +5 = -5 + 5. (add 5 to both sides of the equation)

13 - x + 5 = 0. (evaluate the right hand side)

13 - x + x + 5 = 0 + x. (add x to both sides of the equation)

13+5 = x. (evaluate the right and left hand sides)

18 = x. (evaluate the left hand side)

Answer 2

In Algebra

13 - n = -5