1)0.9x-8=- 1/39/10X = -1/3 + 827/30X = -10/30 + 2400/3027/30X = 2390/30X = 2390/30:27/30 = 2390/30*30/27 = 2390/30 = 239/3 = 79 2/32)-(2-x)+(-3x-1)=-6x+3 -2 + X - 3X - 1 = -6X + 3 -2X - 3 = - 6X + 3 -2X + 6X = 3 + 3 4X = 6 X = 6/4 = 3/2 = 1,53)-4*(5-x)=2*(x-3) - 20 + 4X = 2X - 6 4X - 2X = -6 + 20 2X = 14 X = 7 4)-(-2.4x-8)-0.7*(3x-5)=-3.5 2,4X + 8 - 2,1X + 3,5 = -3,5 0,3X = -3,5 - 3,5 - 80,3X = - 15 X = -50 5) 1/2X+8=2X * 3 1/6 1/2X + 8= 19/3 X 8 = (19/3 - 1/2)X 8 = 35/6X X = 8:35/6 = 8*6/35 = 48/35 = 1 13/35