1) 3(x + 6) = 2x + 24;

3x + 18 = 2x + 24;

3x - 2x = 24 - 18;

x(3 - 2) = 6;

x = 6;

2) 7x - 6(x - 3) = 27;

7x - 6x + 18 = 27;

7x - 6x = 27 - 18;

x = 9.