Try this suggested solution, note, 'D' means the region bounded by the triangle according to the condition. It consists of 6 steps.
Answers are underlined with red colour.
Answer:
-78
Step-by-step explanation:
-4/5+7;j(x0= -5
-4/5 equals 0.8
0.8 equals 80
-80+7= -73
-73 - -5= -78
X= -78
Please tell me if wrong