1) 2x + 9 = 13 - x;

2x + x = 13 - 9;

x(2 + 1) = 4;

3x = 4;

x = 1 1/3;

2) 14 - y = 19 - 11y;

11y - y = 19 - 14;

10y = 5;

y = 1/2.