Hi! Could you please send a picture of the full problem? Thanks!
Answer:
6
Step-by-step explanation:
2a
-6 and +6 cancel out leaving the 2a by itself.
here. I don't know if its right but i hope it is.
x=2
We know the only number that gets us back to 0 after subtracting 4 is 4, because 4-4=0. The square root of 4 is 2. Hope my explanation wasn't too confusing!
2²=4
4-4=0
