Answer:
5
Step-by-step explanation:
7 + 6 + 8 + 4 + 3 + 2 = 30
30 divided by 6 = 5
The answer is x=2+5i or 2-5i
3x+5x-1+4x+2x+6x+1=540 (Sum of all int. angles of a pentagon is 540)
20x-0=540 (Add like terms)
20x=540 (addition property of equality)
<u>x=27 </u>
2x - 15 = -27
2x = -27 + 15
2x = - 12
x = -12/2
x = -6 <==