1) 6x + 8 = 14 + 30;

6x = 14 + 30 - 8;

6x = 34 - 8;

6x = 26;

x = 13/3;

x = 4 1/3.

2) 20 + 4x = 52;

4x = 52 - 20;

4x = 32;

x = 8;

3) 5(x + 4) - 43 = 17;

5(x + 4) = 17 + 43;

5(x + 4) = 60;

x + 4 = 12;

x = 12 - 4;

x = 8.