8
15
It is -25 because -15--25 = 10
-17
22
-5
-5
Well honey, if you want to get from -5 to 10, you need to add 15, not subtract. But if you're really set on subtracting, then technically speaking, you'd subtract -15. Math can be a real tricky devil sometimes, but that's the cold, hard truth.
The number is 15.
15
To express the statement "seven subtracted from a number is 15" mathematically, you can write it as ( x - 7 = 15 ), where ( x ) is the unknown number. To find ( x ), you add 7 to both sides of the equation, resulting in ( x = 15 + 7 ). Thus, ( x = 22 ). The number is 22.
14