Question

PLEASE HELP ME I WAS SICK AND I DONT UNDERSTAND.DUE IN 1 HOUR!!!!

Answer 1

x = 11

Explanation:

(3x + 12) + (7x + 15) = 137 (exterior angle: angle KFG = angle g + angle h)

10x + 27 = 137

10x = 110

x = 11