You are using a bucket of water in a science experiment. you conclude that water is a liquid

"A It takes the shape of the container" is the best answer, although liquids also move easily from source to source. Gasses also do this, but to a slightly lesser extent.

Make them both to where they have the denominator of 18that makes 3/2 equal 27/18 and 1/9 equal 2/18so now you have  27/18x+5=2/18subtract 5 from the other sideso now you have 27/18x+2/18-5then subtract 2/18 from 27/18 to get 25/18x=-5then divide 25/18 by -5 and your answer will be  -5/18