Question

8y+12p=2 880
9y+3p=1 770

Answer 1

Respuesta:

9y+3p=1 770

$9y+3p=1 7709y=1770-3p\\y=\frac{590}{3} -\frac{1}{3}p$

$8(\frac{590}{3} -\frac{1}{3}p)+12p=2880\\\ \\\\\frac{4720}{3}-\frac{8}{3}p+12p=2880\\ \\\frac{4720}{3}-\frac{28}{3}p=2880\\\\4720+28p=8640\\28p=8640-4720\\28p=3920p=140$

$y=\frac{590}{3} -\frac{1}{3} *140\\\\ y=\frac{590}{3} -\frac{140}{3}\\\\y=150$

p= 140  y=150

8*150+12*140=2880

9*150+3*140=1770

2880=2880

1770=1770

SUERTE.

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