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JIKA KURANG JELAS KASIH TAHU AJA..OK.
2x-6y=16
x-3y=3 =>x=3+3y
2x-6y=16
2(3+3y)-6y=16
6+6y-6y=16
6y-6y=16-6
y=10
x=3+3y
x=3+3(10)
=3+30
x=33
maaf kalau salah