1)10x-8=0; 2)8x-5=10x; 3)9+4x=8x-9

[latex]1) 10x-8=0 \ 10x=8 \x= frac{8}{10} = frac{4}{5} \\ 2) 8x-5=10x \ -2x=5 \ x=- frac{5}{2}=-2 frac{1}{2} \\ 3) 9+4x=8x-9 \ -4x=-18 \ 4x=18 \ x= frac{18}{4}= frac{9}{2}= 4frac{1}{2} [/latex]

1) 10x-8=010x=8x=[latex] frac{8}{10} [/latex] = [latex] frac{4}{5} [/latex] = 0,82) 8x-5=10x8x-10x=5-2x=52x=-5x=-[latex] frac{5}2} [/latex] = -2,53) 9+4x=8x-99+9=8x-4x18=4x4x=18x= [latex] frac{18}{4} [/latex] = 4[latex] frac{2}{4} [/latex] = 4,5