The problem
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how did you get the red answer
Answer provided by our tutors
We draw the graph for all the inequalities to find the solution:
-x+2y<6,
2x+y<7,
y>=0
The area the intersects is the solution:
The red area you get by drawing "-x+2y<6" which is the same inequality as as "y<x/2+3" (we get this inequality by moving the variable "x" to the right hand side and then dividing by "2").