Układy równań pomóżcie :*:) jak ktoś ma podręcznik matematyka z plusem 2 gwo. zadanie 4 strona 96 c ) {3u + 2v = 2 {5u + 4v = 6 d ) {3s + 5t = -6 { 1,5s - 2t= -3 e ) {5= 3x - y {5x-2y = 7 f ) {x- 3y = 5 {y+ 3x = - 5

{3u + 2v = 2 |x(-2) {5u + 4v = 6 -6u - 4v = -4 5u + 4v = 6 -1u = 2 u = -2 2v = 2 - 3u 2v = 2 - 3(-2) 2v = 2 + 6 v = 4 {3s + 5t = -6 { 1,5s - 2t= -3 |x(-2) 3s + 5t = -6 -3s + 6t = 6 11t = 0 t = 0 5t = -6 - 3s 5t = -6 t = 1,2 {5= 3x - y {5x-2y = 7 {x- 3y = 5 {y+ 3x = - 5