Решите уравнение: 1) -6,5+x=-12 2)x-8 4/9=-35 8/27 3) Ix+7I=6
1) -6,5+x=-12 х=-12+6,5 х=-5,5 2)x-8 4/9=-35 8/27 х=-35 8/27+8 4/9 х=-35 8/27+8 12/27 х=-34 35/27+8 12/27 х=-26 23/27 3) Ix+7I=6 х+7=6 х=-1 х+7=-6 х=-13