Answer:
74 degrees
Explanation:
Supplementary angles are two angles whose sum is 180 degrees.
<LE + <LF = 180 degrees
9x-38+2x+42=180
11x + 4 = 180
11x = 180-4
x = 176/11
x = 16
<LF = 2(16)+42
<LF = 74 degrees
9.4m questions
12.2m answers