Уравния 4х-1=2(х+3) 5х+0.9=3(х-1.5) 4(3х-0.6)=-3(4х-0.8)
1) 4x-1=2x+6 4x-2x=6+1 2x=7 x=3.5 2) 5x+0.9=3x-4.5 5x-3x=-4.5-0.9 2x=-5.4 x=-2.7 3) 12x -2.4=-12x+2.4 12x+12x=2.4+2.4 24x=4.8 x=0.2