Question

If -10 is subtracted from a number, the result is 6. what is the number?

Answer 1

subtracting a negative number is the same as adding a positive number

assume your number is n

n - (-10) = 6
n + 10 = 6

subtract 10 from both sides

Answer 2

-4 - -10 = 6, to simplify the statement you make it -4 + 10 = 6