Question 498540
NFE + GFE = GFN
14x + 3 + 157 = 4x + 10
10x = -150
x = -15
NFE = 14(-15) + 3 = -207 degrees
GFE = 157 degrees
-207 + 157 = -50
GFN = 4(-15) + 10 = -50 degrees.
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The answers do check, but the angles for NFE and GFN are negative.
Negative angles are possible, but I would confirm your question for accurate input.
Cleomenius.