Решите уравнение! Даю 15 баллов
[tex] \left \{ {{5p-3q=0} \atop {3p+4q=29}} ight. [/tex]
[tex] \left \{ {{4u+3v=14} \atop {5u-3v=25}} ight. [/tex]
[tex] \left \{ {{10p+7q=-2} \atop {2p-22=5q}} ight. [/tex]
[tex] \left \{ {{2u+5v=0} \atop {-8u+15v=7}} ight. [/tex]

1){5p-3q=0       /x4{3p+4q=29    /x3{20p-12q=0{9p+12q=87{29p=87p=39+4q=294q=20q=52){4u+3v=14{5u-3v=259u=39u=39/9=13/352/3+3v=143v=14-52/33v=-10/3v=-10\93){10p+7q=-2{2p-22=5q{10p+7q=-2{2p-5q=22       /x(-5){10p+7q=-2{-10p+25q=-11032q=-112q=-112/32=-7/210p-49/2=-210p=-2+49/210p=45/2p=45/20=9/44){2u+5v=0           /x4{-8u+15v=7{8u+20=0{-8u+15v=735v=7v=7/35=1/52u+1=02u=-1u=-1/2