Rozwiąż układy równań: c) (2x - 5)/2 - (x-6)/4=-1,5 (3x-1)/10 + (2y - 5)/5=(2x+y)2 d) (x-3)/5 - (y+1)/2 = 1 - (x - y) (4x-1)/3 - (y-3)/6= 2(x-y) Przed każdą parą rownań powinna być klamerka. Z góry dzieki

c) (2x - 5)/2 - (x-6)/4=-1,5 / *4 (3x-1)/10 + (2y - 5)/5=(2x+y)2 / *10 {2(2x-5) - (x-6) = -6 {(3x-1) + 2 (2y-5) = 10(2x+y)2 {4x-10 - x+6 = -6 {3x-1 + 4y-20 = 40x+20y {4x- x = -6+10 -6 {3x + 4y- 40x-20y =20+1 {3x =10 / :3 {-37x -16y=21 {x =3⅓ {-37x -16y=21 {x =3⅓ {-37* ( 3⅓) -16y=21 {x =3⅓ {-123⅓ -16y=21 {x =3⅓ { -16y=21+123⅓ {x =3⅓ { -16y=144⅓ / :(-16) {x =3⅓ {y=9¹/₄₈ d) (x-3)/5 - (y+1)/2 = 1 - (x - y) / *10 (4x-1)/3 - (y-3)/6= 2(x-y) / *6 {2(x-3) -5 (y+1) = 1*10 - 10(x-y) {2(4x-1) - (y-3) = 6*2 (x-y) {2x-6 -5y-5 = 10 - 10x+10y {8x-2 - y+3 = 12x-12y {2x -5y +10x-10y = 10+6+5 {8x-y-12x+12y = -3+2 {12x-15y = 21 {-4x+11y = -1 / *3 {12x-15y = 21 {-12x+33y = -3 dodajemy stronami 18y = 18 / 18 y = 1 podstawiamy do pierwszego równania {12x-15y = 21 12x - 15*1 = 21 12x = 21+15 12x = 36 / 12 x = 3 {x=3 {y=1