a) [latex]-5x + 10 = -2x - 8\ -3x=-18\ x=6[/latex] b) [latex]2(x + 4) - 5(x + 3) = 2\ 2x+8-5x-15=2\ -3x=9\ x=-3[/latex] c) [latex]5 - x+frac{5}{3} = 2 - x\ 0=2-6frac{2}{3}[/latex] Brak rozwiązania d) [latex]3x + 4-frac{1}{5}x = x - 1\ frac{4}{5}x=-5\ x=-6frac{1}{4}[/latex] e) [latex]x+frac{4}{5} + 2x +frac{9}{10} = -2-frac{1}{2}x\ 3frac{1}{2}x=-2-frac{9}{10}-frac{8}{10}\ 3frac{1}{2}x=-2frac{17}{10}\ x=frac{37}{10}*frac{2}{7}\ x=frac{37}{35}\ x=1frac{2}{35}[/latex]
a. -5x + 10 = -2x - 8 -5x+2x=-8-10 -3x=-18 / : -3 x=6 b. 2(x + 4) - 5(x + 3) = 2 2x+8-5x-15=2 -3x=2-8+15 -3x=9 / : -3 x= -3 c. 5 - x+5/3 = 2 - x / razy 3 15-3+5=6-3x 6-3x=15-3+5 -3x=9/:-3 x=-3 d. 3x + 4-x/5 = x - 1 / razy 5 15x+20-x=5x-5 9x=-25 /:9 x= - 2 całe i 7/9 e. x+4/5 + 2x +9/10 = -2-x/2 / razy 10 10x+8+20x+9=-20 - 5x -5x=-37 / : -5 x= 7 całych i 2/5
