Penjelasan dengan langkah-langkah:
4x - 13 = 2x + 21
4x - 2x = 21 + 13
2x = 34
x = 34/2
x = 17
<Y = 4x - 13
<Y = 4(17) - 13
<Y = 68 - 13
<Y = 55°
opsi C
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Penjelasan dengan langkah-langkah:
4x - 13 = 2x + 21
4x - 2x = 21 + 13
2x = 34
x = 34/2
x = 17
<Y = 4x - 13
<Y = 4(17) - 13
<Y = 68 - 13
<Y = 55°
opsi C