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2x+5y=-2 x3 menjadi
6x-4y=32
6x+15y=-6 -
-19y=38
y=38/-19
y=-2
mencari x
3x-2y=16
3x-2(-2)=16
3x+4=16
3x=16-4
x=12/3
x=4
5x+3y
5(4)+3(-2)
20-6
14 (B)