October 2018 2 13 Report
Nilai rata"dari 15 anak 7,2,jika ditambah nilai 5 anak yg lain nilai rata"nya menjadi 7,5.nilai rata"5 anak tersebut adalh...
a.7,6
b.7,8
c.8,2
d.8,4

2) penyelesaian dari 5(3x-6)(x-2) adalah..
a.x=1
b. x=2
c. x=6
d.x=9

tolong pk cara ya ka

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