Answer:
4+2= 6+ 4+7= 17+7=25+4=28
Answer: B. A piece of land surrounded by water on three sides
The answer is x=2 because you have to subtract 7 on both sides so you get -3x=-6 then to get x alone you have to divide by -3 because a negative and a negative divided together makes a positive so you divide -3 to both sides and you get x=2