Add -2 on the both sides
x+2-2=9-2
x=7
Answer:
Step-by-step explanation:
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Answer: Everything except 3 * 129
Step-by-step explanation:
You can break 388 in half twice in order to find the answer.
Since 388/2 = 194, then 194 * 2 = 388
Since 388/4 = 97, then 97 * 4 = 388
Do note that 3 and 129 are both odd. Two odd factors can never make an even product. So that is out immediately.
Hope this helped a little bit, I tried to be quick with the explanation because I know how annoying those online things are. If you need anything explained more, just let me know.