Answer:
x=18
Explanation:
To solve for x, remember to ask yourself what is being done to x, then do the opposite to cancel it out and get x by itself. In this case, what is being done to x? 1 is added to it. So you have to do the opposite, which is subtract 1. You have to subtract 1 from each side because what you do to one side, you always have to do to the other.
19=1+x
19-1=1+x-1
18=x which is the same as x=18