7 1/2+4x=-0,5 -4x-3(2x-1)=7 -5x+4(2x+3)=-3 1/3 x +(2x+1)=1/2x+(x+2 1/3)

7 1/2+4x = -0,5 15/2 + 4x = - 1/2 4x = -1/2 - 15/2 4x = -16/2 4x = -8 x = (-8) :4 x = -2 -4x-3(2x-1) = 7 -4x -6x +3 = 7 -10x = 7 -3 -10x = 4 x = 4 : (-10) x = -0,4 -5x+4(2x+3) = -3 -5x +8x + 12 = -3 3x = -3 -12 3x = -15 x = (-15) :3 x = -5 1/3 x +(2x+1)=1/2x+(x+2 1/3) 1/3x + 2x + 1 = 1/2x + x + 7/3 /*6 2x + 12x + 6 = 3x + 6x + 14 14x +6 = 9x+14 14x -9x = 14 -6 5x = 8 x = 8 : 5 x = 8/5 x = 1,6