Solve the following equations for x: 1.1) x + 3 = 8, 1.2) x − 7 = 9, 1.3) x − 3 = 28, 1.4) x + 4 = 26, 1.5) x − 10 = 4, 1.6) x − 18 = 9

$$x = 5$$

The final answer is $\boxed{\text{5}}$

$$x = 16$$

The final answer is $\boxed{\text{16}}$

$$x = 31$$

The final answer is $\boxed{\text{31}}$

$$x = 22$$

The final answer is $\boxed{\text{22}}$

$$x = 14$$

The final answer is $\boxed{\text{14}}$

$$x = 27$$

The final answer is $\boxed{\text{27}}$