-2-w is equivalent to -24 - 12w all you have to do is simplify the expression!
Answer:
x = 72
Step-by-step explanation:
36 - x = -36
*subtract 36 from both sides*
-x = -72
*divide by -1*
x = 72
I can't explain it but if you need me to explain it I can but here is my work.
We must find a pattern in the powers of 3:





So, as you can see, both
and
end with 1. So, we can generalize as follows:




Since
, we can deduce that
ends with 9.