Rozwiaz układ rownan 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 /*3 8x+12-8y+2=30 15x+1-3y-9/4=9/*4 8x=16+8y 60x+4-12y-9=36 8x=16+8y/:8 60x+4-36-9=12y x=2+y 12y=60(2+y)-41 x=2+y 12y=120+60y-41 x=2+y -48y=79 /:(-48) x=2+(-79/48) y=-79/48 x=17/48 y=-79/48

4(2x + 3)-2(4y -1) = 30 5x + 1/3 - y-3/4 =3 8x + 12 -8y +2 = 30 -y = 3 - 5x - 1/3 + 3/4 /*(-1) 8x + 12 - 8 (5x - 41/12) + 2 = 30 y = 5x - 41/12 8x -40x = 30 - 12 - 82/3 /: (-32) y = 5x - 41/12 x = 7/24 y = 5*7/24 - 41/12 x = 7/24 y = -47/24