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4x-3y=-29
Dikurang Jadi 6y=42
y=7
4x+3y=13
4x+3(7)=13
4x+21=13
4x=13-21
4x=-8
x=-2
Jadi,
2x+3y= 2(-2)+3(7)
=-4+21
=17
maaf kalo salah