PAKET SOAL "C"
Metode Subtitusi
X + Y = 1 ==> X = -1 -Y
3X + 2Y = -2
3X + 2Y = -2 X = -1 -Y
3(-1 -Y) +2Y = -2 X = -1 -(-1)
-3 -3Y +2Y = -2 ...
REMEDIAL MATEMATIKA
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PERSAMA LINIER
1)-4
x + 5 = 25 6)
3 x – 7 = 9 + - x
- 4 x = 25 – 5 ...
Rabu, 01 Oktober 2014
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