Oblicz równania i podaj sprawdzenie: 4(x-1)=-2(x+1) 3(2x+3)=x-1 ½-x=-½x

4(x-1)=-2(x+1) 4x-4=-2x-2 4x+2x=2 6x=2 x=1/3 spr; 4(1/3-1)=-2(1/3+1) 4/3-4=-2/3-2 -2i2/3=-2i2/3 3(2x+3)=x-1 6x+9=x-1 6x-x=-10 5x=-10 x=-2 spr: 3(2*(-2)+3)=-2-1 3(-4+3)=-3 3(-1)=-3 -3=-3 ½-x=-½x -x+1/2x=-1/2 -1/2x=-1/2 x=1 spr: 1/2-1=-1/2(1) -1/2=-1/2

4(x-1)=-2(x+1) 4x-4=-2x-2 4x+2x=4-2 6x=2 x=2:6 x=⅓ spr.4(⅓-1)=-2(⅓+1) 4×(-⅔)=-2×⁴/₃ -2⅔=-2⅔ 3(2x+3)=x-1 6x+9=x-1 6x-x=-1-9 5x=-10 x=-10:5 x=-2 spr.3[2×(-2)+3]=(-2)-1 3×-1=-3 -3=-3 ½-x=-½x -x+½x=-½ -½x=-½ x=1 spr.½-1=-½×1 -½=-½

4(x-1)=-2(x+1) 4 x x - 4 x -1 = -2 x x + -2 x 1 4x - (-4) = 2x + -2 4x + 4 = 2x + -2 2x + 4 = -2 2x = 4 - (-2) 2x = 6 x = 6 : 2 x = 3 3(2x + 3) = x - 1 3 x 2x + 3 x 3 = x - 1 6x + 9 = x - 1 5x + 9 = - 1 5x = 9 - (-1) 5x = 10 x = 10 : 5 x = 2 1/2 - x = -1/2x 1/2 - x = -1/2 x x -x = - x