Answer:
x = 5/-8
Step-by-step explanation:
4x = 12x + 5
4x - 12x = 5
-8x = 5
x = 5/-8
Answer:
Brainly.
Step-by-step explanation:
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42.105263157895 I hope this is the what u wanted
10 degrees is in a 90 degree angle
90-10 =80
use sin
sin(80)=9/x
get x alone
x=9/sin(80)
Angles in triangle add to 180 degrees
20x=180
x=9
Angle ABC is the top one
8x9=72
