Zadanie 1  Rozwiąż równanie.  a) [latex] frac{5-2x}{3} = frac{4-x}{2} [/latex] b) [latex] frac{x-1}{6} = frac{x+2}{5} [/latex] c) [latex] frac{2-3x}{4} = frac{3-2x}{5} [/latex]

      /*6 10 - 4x = 12 - 3x -4x + 3x = 12 - 10 -x = 2  /*(-1) x = -2       /*30 5x - 5 = 6x + 12 5x - 6x = 12 + 5 -x = 17 /*(-1) x = -17     /*20 10 - 15x = 12 - 8x -15x + 8x = 12 - 10 -7x = 2  /:(-7) x = -2/7  

a) [latex]frac{5-2x}{3}=frac{4-x}{2}[/latex] [latex]2(5-2x)=3(4-x)[/latex] [latex]10-4x=12-3x[/latex] [latex]-4x+3x=12-10[/latex] [latex]-x=2[/latex] [latex]x=-2[/latex] b) [latex]frac{x-1}{6}=frac{x+2}{5}[/latex] [latex]5(x-1)=6(x+2)[/latex] [latex]5x-5=6x+12[/latex] [latex]5x-6x=12+5[/latex] [latex]-x=17[/latex] [latex]x=-17[/latex] c) [latex]frac{2-3x}{4}=frac{3-2x}{5}[/latex] [latex]5(2-3x)=4(3-2x)[/latex] [latex]10-15x=12-8x[/latex] [latex]-15x+8x=12-10[/latex] [latex]-7x=2[/latex] [latex]x=-frac{2}{7}[/latex]