Rozwiąż równania: 2t-(3t+1)=6 -(4+x)=2(3-x) 3(y+6)-y=2(y+9) (x-7)-2(3x+5)=3

2t-(3t+1)=6 2t-3t-1=6 -t-1=6/(-1) t=-1/6 -(4+x)=2(3-x) -4-x=6-2x -4+2=x-2x -2=-x/(-2) 1=x 3(y+6)-y=2(y+9) 3y+18-y=2y+18 3y-y-2y=-18+18 y=-1 (x-7)-2(3x+5)=3 x-7-6x-10=3 x-6x=7+10+3 -5x=20/(-5) x=-4