1/3*(х-1)-3/8*(х+1)=1 найдите х

 1/3 * (х - 1) - 3/8 * (х + 1) = 1;

1/3 * х - 1/3 - 3/8 * х - 3/8 = 1;

 8/24 * х - 9/24 * х = 1 + 1/3 + 3/8;

-1/24 * х = 24/24 + 8/24 + 9/24;

-1/24х = 41/24;

-х = 41/24 : 1/24;

-х = 41/24 * 24/1;

-х = 41/1;

-х * (-1) = 41 * (-1);

х = -41;

1/3 * (-41 - 1) - 3/8 * (-41 + 1) = 1;

1/3 * (-42) - 3/8 * (-40) = 1;

-42/3 + 120/8 = 1;

-336/24 + 360/24 = 1;

24/24 = 1;

1 = 1.