zad4
rozwiąż układy równań
a) {3x=12
x-y=1
b) {5y=2
x+y=2 i dwie piąte
c) {a=b
2a+b=9
d) {3r=s
3r+s=24
proszę o rozwiązanie tego zadania
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a) {3x=12 b) {5y=2 c) {a=b d) {3r=s
x-y=1 x+y=2 i i dwie piate 2a+b=9 3r+s=24
{x=1+y {y=2,4-x {b=9-2a {s=3r
3(1+y)=12 5(2,4-x)=2 a=9-2a 3r+3r=24
{x=1+y {y=2,4-x {b=9-2a {s=3r
3+3y=12 12-5x=2 3a=9 6r=24
{x=1+y {y=2,4-x {b=9-2a {s=3r
3y=9 5x=10 a=3 r=4
{x=1+y {y=2,4-x {a=3 {r=4
y=3 x=2 b=9-2*3 s=3*4
{y=3 {x=2 {a=3 {r=4
x-3=1 x+y=2,4 b=9-6 s=12
{y=3 {x=2 {a=3
x=4 2+y=2,4 b=3
{x=2
y=0,4