3(-2y+11)-7y=-32
-6y+33-7y=-32
-13y+33=-32
-13y=1
y=-1/13
The solution(s) of a system of linear equations give points of intersection of specific lines or planes.
The solution(s) of a system of linear inequalities give areas of intersection wherein any specific pair of points or lines are solutions.
PROCESS-WISE there are little differences between solving systems. However, multiplication and division by negatives reverses the signs in inequalities.
So you got the answer already