Rozwiąż układ równań: 4(2x+3)-2(4y-1)=30 (5x+1:3)-(y-3:4)=3

4(2x+3) - 2(4y-1) = 30 (5x+1/3) - (y- 3/4) = 3 8x + 12 - 8y + 2 = 30 5x + 0,33 - y + 0,75 = 3 8x - 8y = 30 - 2 - 12 5x - y + 1,08 = 3 8x = 8y + 16 / : 8 5x - y = 3 - 1,08 x = y + 2 5 (y + 2) - y = 1,92 x = y +2 5y - y = 1,92 - 10 x = y + 2 4y = - 8,08 /: 4 x = y + 2 y = - 2,02 x = - 2,02 + 2 y = - 2,02 x = 0,02 y = - 2,02

4(2x+3)-2(4y-1)=30 (5x+1:3)-(y-3:4)=3 8x+12 -8y+2=30 5x+1/3 -y+3/4 =3 8x-8y=30-14 5x-y=3- 3/4 - 1/3 /*12 8x-8y=16 /:8 60x-12y=36 -9 -4 x-y=2 /*(-12) 60x-12y=23 -12x+12y=-24 60x-12y=23 ------------- 48x=-1 /:48 x=-1/48 x-y=2 -1/48 -y=2 /*48 -1-48y=96 -48y=96+1 -48y=97 /:(-48) y=-97/48