Yes and no you do not use the slash you use ^
X equal 7 so 49=x7 that is what I would do at least
19 because 1 ten = 10 ones and 9 one plus 10 ones equals 19 altogether
Give each of the kids a full field then have them share or split the other field
-12/6+2
=-12/6+2/1
=-2/1+2/1
=-2+2/1
=0
From looking at that equation you put this is my solution.