Sagot :
Bütünler açı 180 derece
Biri 3x+20
Diğerine de x dersek 4x+20=180
180-20=160
4x=160
X=40
Biri 3x+20
Diğerine de x dersek 4x+20=180
180-20=160
4x=160
X=40
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