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2x:y=3 ×2
4x:y =3
4x:2y=6 _
-y=-3
y=3
4x:3=3
4x=3×3
4×=9
×=2 1/4
x:3+3=6
y:2 1/4+3=5 1/4
6+5 1/4= 11 1/4 tahun
maaf kalo salah