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persamaan 1
3x+4y=13
⇔3x+4(2x+6)=13
3x+8x+24 =13
11x+24 =13
11x =13-24
11x = -11
x = -11
11
x = -1
persamaan 2
y=2x+6
y=2.-1+6
y= -2+6
y=4
HP={-1,4}
y=2x+6
3x+4y=13
3x+4(2x+6)=13
3x+8x+24=13
11x=13-24
11x=-11
x=-1
y=2x+6
y=2(-1)+6
y= -2+6
y=4
HP= x=-1. dan y=4
HP={-1,4)