Решите уравнение: a) (3x-1)/2 + (2-x)/3 + 1 = 0; б) (y-10)/6 - (5-2y)/4 = 2,5.

a) (3x-1)/2 + (2-x)/3 + 1 = 0; 9x - 3 + 4 - 2x + 6 = 0; 7x = -7; x = -1;
б) (y-10)/6 - (5-2y)/4 = 2,5; 2y - 20 - 15 + 6y = 30; 8y = 65; y = 8 1/8.