Dik=
U8=41
U15=60
Ditanya?
a/U1 dan b ?
Jwb=
U8=a+(n-1).b
=a+(8-1) b
=a+7b=41 (P1)
U15=a+(15-1). b
=a+14b=60 (P2)
a+7b=41
a+14b=60
_________ -
-7b=-19
b=19:7=
2,71
a+7(2, 71) =41
a+18,97=41
a=41-18, 97=22,03
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Dik=
U8=41
U15=60
Ditanya?
a/U1 dan b ?
Jwb=
U8=a+(n-1).b
=a+(8-1) b
=a+7b=41 (P1)
U15=a+(15-1). b
=a+14b=60 (P2)
a+7b=41
a+14b=60
_________ -
-7b=-19
b=19:7=
2,71
a+7b=41
a+7(2, 71) =41
a+18,97=41
a=41-18, 97=22,03