Odpowiedzi

2010-03-07T17:48:15+01:00

{4(2x+3)-2(4y-1)=30
5x+1:3 - y-3:4 = 3
{8x+12-8y+2=30
5x+⅓-y-¾=3/×12
{8x-8y=30-2-12
60x+4-12y-9=36
{8x-8y=16/*12
60x-12y=41/*(-8)
{96x-96y=192
-480x+96y=-328
₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋₋
-384x=-136/:(-384)
x=-136/384
x=17/48

{96x-96y=192
96*17:48-96y=192
34-96y=192
-96y=158/:(-96)
y=-158/96
y=-79/48

{x=17/48
y=-79/48