The angle right above 4x is equal to x
and 4x + x = 180
5x = 180
/5 /5
x = 36
Answer:
x =4
Step-by-step explanation:
2/3(x-7)= -2
Multiply each side by 3/2 to clear the fractions
3/2 * 2/3(x-7)= -2 *3/2
x-7 = -3
Add 7 to each side
x-7+7 = -3+7
Exterior angle = 360/n
= 360/13
= 27.7°
