Rozwiaz rownania : a) [latex]2x - 1 frac{1}{3} = -3 frac{2}{5} [/latex] b) -x + 3 + 5,7 c) 3(x-3) = 6 (2x+1) d) 4(x-3) - (x-1) = 12 - 2x PROSZEEEE :)

a) [latex]2x-1frac{1}{3}=-3frac{2}{5} [/latex][latex]2x=-3frac{2}{5} + 1frac{1}{3}[/latex][latex]2x=-frac{17}{5} + frac{4}{3} |*15[/latex][latex]30x=-(17*3) + (5*4) [/latex][latex]30x=-51 + 20[/latex][latex]30x=-31|:30[/latex][latex]x=-frac{31}{30}=-1 frac{1}{30} [/latex]b) -x + 3 + 5,7 (to nie jest równanie)c) 3(x-3) = 6 (2x+1)3x - 9 = 12x + 6 3x - 12x = 6 + 9-9x = 15/:(-9)x = - 15/9 d) 4(x-3) - (x-1) = 12 - 2x4x -12 - x + 1 = 12 - 2x3x - 11 = 12 - 2x3x + 2x = 12 + 115x = 23/:5x = 23/5 = 4 i 3/5