Jawab:
Penjelasan dengan langkah-langkah:
x - 2y = -12
3x + 2y = -8 +
4x = -20
x = -20/4
x = -5
x = p = -5
-5 - 2y = -12
-2y = 5 - 12
-2y = -7
y = (-7)/(-2)
y = 7/2
y = 3½
q = y = 3½
p + 2q = -5 + 2(3½)
p + 2q = -5 + 7
p + 2q = 2
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Jawab:
Penjelasan dengan langkah-langkah:
x - 2y = -12
3x + 2y = -8 +
4x = -20
x = -20/4
x = -5
x = p = -5
-5 - 2y = -12
-2y = 5 - 12
-2y = -7
y = (-7)/(-2)
y = 7/2
y = 3½
q = y = 3½
p + 2q = -5 + 2(3½)
p + 2q = -5 + 7
p + 2q = 2