jawab pake cara no 9 ngk usa

[tex] \frac{1}{3} p - q = - 1 \\ \frac{1}{3} p = q - 1 \\ p = 3q - 3 \\ \frac{1}{2} p - \frac{1}{3} (q + 6) = 0 \\ \frac{1}{2} (3q - 3) - \frac{1}{3 }q - 2 = 0 \\ \frac{3}{2} q - \frac{3}{2} - \frac{1}{3} q - 2 = 0 \\ 9q - 9 - 2q - 12 = 0 \\ 7q = 11 \\ q = \frac{11}{7} \\ \\ p = 3( \frac{11}{7} ) - 3 \\ p = \frac{33 - 21}{7} \\ p = \frac{12}{7} [/tex]
jawabannya trlampirkan
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