$\frac{3x - 1}{2} + \frac{2 - x}{3} + 1 = 0$ | * 6
3(3x − 1) + 2(2 − x) + 6 = 0
9x − 3 + 4 − 2x + 6 = 0
7x = −7
x = −1

$\frac{y - 10}{6} - \frac{5 - 2y}{4} = 2,5$ | * 12
2(y − 10) − 3(5 − 2y) = 2,5 * 12
2y − 20 − 15 + 6y = 30
8y = 65
$y = 8\frac{1}{8}$