3(2x-1)+4(y-2)=9 2(5x-1)+3y=5(3x+y)+2 Rozwiaz uklad rownan ;)

6x-3+4y-8=9 6x+4y=20 10x-15x-5y+3y=2-2 -5x-2y=0

3(2x-1)+4(y-2)=9 2(5x-1)+3y=5(3x+y)+2 6x-3+4y-8=9/+11 10x-2+3y=15x+5y+2/+2 -15x -5y 6x+4y=20 -5x-2y=4/*2 6x+4y=20 -10x-4y=8 -4x=12/:(-4) 6x+4y=20 x=-3 6*(-3)+4y=20 x=-3 -18+4y=20/+18 x=-3 4y=38/:4 x=-3 y=9,5

3(2x-1)+4(y-2)=9 2(5x-1)+3y=5(3x+y)+2 6x-3+4y-8=9 10x-2+3y=15x+5y+2 6x-11+4y=9 10x-2+3y=15x+5y+2 6x+4y=20 -5x-2y=4 /*2 6x+4y=20 -10x-4y=8 ------------- -4x=28 x=-7 6x+4y=20 6*(-7)+4y=20 -42+4y=20 4y=62 /4 y=15,5