62°
5x + 2 = 8x - 34
5x + 2 + 34 = 8x
5x + 36 = 8x
36 = 8x - 5x
36 = 3x
3x = 36
x = 12°
DEF = 5x + 2
DEF = 5(12) + 2
DEF = 60 + 2
DEF = 62°
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