Question

СРОЧНО!!! Решите систему двух уровнений

Answer 1

$left { {{frac{p+1}{5u-4}=frac{1}{2}} atop {frac{5u+p}{3u+6}=1}} right. rightarrow left { {{2p-5u=-6} atop {p+2u=6: |: *(-2)}} right. rightarrow left { {{2p-5u=-6} atop {-2p-4u=-12}} right. rightarrow left { {{p=2} atop {u=2}} right. \\-9u=-18\; ; ; u=2\\p+2*2=6\p=2\\Otvet: (p,u)=(2,2)$