Решите уровнение 1/6х=-2/3; -3/4х=-9; 2/3х= -8.
1/6х=-2/3; x=-2/3*6/1 x=-4 ============ -3/4х=-9; x=-9*(-4/3) x=12 ============= 2/3х= -8. x=-8*3/2 x=-12