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Verified answer
(2x + 5) + 57=1802x + 62 =180
2x = 180-62
2x =118
x= 118:2
x=59
■ Materi : Sudut
■ Bab : Garis dan Sudut
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180 = 2x + 5 + 57
180 = 2x + 62
2x = 180 - 62
2x = 118
x = 118/2
x = 59°
Jadi, nilai x adalah 59°