[latex]1) 8+4x-3x=2x-1 \ \ 8+4x-3x-2x= -1 \ \ -1x= -1-8 \ \ x= -9:-1 o oxed{x=9} \ \ \ 2)3 frac{2}{5}+2 frac{2}{5} x=2 frac{1}{2} x+1 frac{1}{4} \ \ frac{15+2}{5}+ frac{10+2}{5} x= frac{4+1}{2} x+ frac{4+1}{4} \ \ frac{17}{5}+ frac{12}{5} x= frac{5}{2} x+ frac{5}{4} \ \ frac{12}{5} x- frac{5}{2} x= frac{5}{4}- frac{17}{5} \ \ frac{12*2}{5*2} x- frac{5*5}{2*5} x= frac{5*5}{4*5}- frac{17*4}{5*4} [/latex] [latex]frac{24}{10} x- frac{25}{10} x= frac{25}{20}- frac{68}{20} \ \ frac{24-25}{10} x= frac{25-68}{20} \ \ -frac{1}{10} x= -frac{43}{20} o x=- frac{43}{20}: - frac{1}{10} o oxed{x= frac{43}{2} }[/latex] [latex]3) 3(x-1)-3x-(9-x)=6+x \ \ 3x-3-3x-9+x=6+x\ \-3x-3x+x-x=6+9 \ \ 0x= 15 o wynik absurdalne[/latex] pozdrowienia!!!!
