Rozwiąż układ równań metodą podstawiania: 1) {6x-17y=11 {-5x+15y=10 2) {24x-16y=-8 {16x + 4y=24 3) {2t- s=5 {s+ t=3 4) {b-3a=17 {4a+ 2b=44

1) {6x-17y=11 {-5x+15y=10 |÷(-5) {6x - 17y=11 {x=-2+3y {6 (-2+3y) - 17y = 11 {x=-2+3y {-12 + 18y - 17y = 11 {x=-2+3y {y=23 {x=67 2){24x-16y=-8 {16x + 4y=24 | ÷4 {24x-16y=-8 {y=6-4x {24x-16 (6-4x)=-8 {y=6-4x {24x-96+64x=-8 {y=6-4x {88x=88 {y=2 {x=1 3){2t- s=5 {s+ t=3 {2 (3-s) - s=5 {t=3-s {6 - 2s - s=5 {t=3-s {-3s=-1 {t= 2⅓ {s=⅓ 4) {b-3a=17 {4a+ 2b=44 {b=17+3a {4a+2 (17+3a)=44 {b=17+3a {4a+34+6a=44 {b=17+3a {10a=10 {b=20 {a=1

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