Answer:
The number is 14.
Step-by-step explanation:
Assuming that x is the number that we are looking for, then it is first doubled "2x", if it's taken away from 10 we have "10 - 2x" and this is equal to -18. Therefore we have the expression:
10 - 2x = -18
-2x = -18 -10
-2x = -28
x = -28/-2
x = 14
The number is 14.
