Answer:
the answer of 6 + x = 18 is x = 12
Step-by-step explanation:
In order to solve the problem, you have to do the following: you have to subtract on both sides by 6 minus 18, the value is 12, so when you have finished subtracting 18 minus 6, lower the X and then you have the equivalent of X, which is X = 12.
6 + x = 18
-6 -6 cancel 6-6 and subtract 18-6
that the answer is x = 12 and so you get the value of x.
