f) 2t-(3t+1)-6 g)-(4+x)=2(3-x) h)3(y+6)-y=2(y+9) i)(x-7)-2(3x+5)=3

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