Answer:
x=71
Step-by-step explanation:
All exterior angles add up to 360
x+x-6+x+4+x+2+x+5=360
combine all the x's
5x-6+4+2+5=360
add all the numbers
5x+5=360
isolate 5x by cancelling out 5
5x+5-5=360-5
simplify
5x=355
isolate the variable
5x/5=355/5
simplify
x=71
