rozwiąż równania 3(2x+4)-4x=2-2(x+1) x+1=-4(1-x)+x+2 -5(x+4)+2(-3+1)=-x+7 11(x+1)-13(2-x)=4x

3(2x+4)-4x=2-2(x+1) 6x+12-4x=2-2x-2 2x+2x=-12 4x=-3 x+1=-4(1-x)+x+2 x+1=-4+4x+x+2 x-5x=-2-1 -4x=-3 x=3/4 -5(x+4)+2(-3x+1)=-x+7 -5x-20-6x+2=-x+7 -11x-18=-x+7 10x=7+18 10x=25 x=25/10 x=2.5 11(x+1)-13(2-x)=4x 11x+11-26+13x=4x 25x-15-4x=0 21x=15 x=15/21 x=5/7

1) 3(2x+4)-4x=2-2(x+1) 6x+12-4x=2-2x+1 6x-4x+2x=2+1-12 4x=-9 2) x+1=-4(1-x)+x+2 x+1=-4-4x+x+2 x+4x+x=-4+2 6x=-2

3(2x+4)-4x=2-2(x+1) 6x + 12 - 4x = 2 - 2x -2 2x + 12 = -2x 12 = -2x - 2x 12 = -4x /-4 x = -3 x+1=-4(1-x)+x+2 x + 1 = -4 + 4x + 2 + x x + 1 = -2 + 5x 1 + 2 = 5x - x 3 = 4x /4 x = 3/4 -5(x+4)+2(-3+1)=-x+7 -5x - 20 - 6 + 2 = -x + 7 -5x -24 = -x + 7 -5 + x = 7 + 24 -4x = 31 /-4 x = - 31/4 = - 7 i 3/4 11(x+1)-13(2-x)=4x 11x + 11 - 26 + 13x = 4x 24x - 15= 4x 24x - 4x = 15 20x = 15 /20 x = 15/20 = 3/4