**Solve the following pair of linear equations by the substitution and cross-multiplication methods:**

**Solution:**

**Substitution Method**

** (1)**

**(2)**

From equation **(1)**, we can say that

Putting this in equation **(2)**, we get

Putting value of **x** in** (1)**, we get

Therefore, and

**Cross multiplication method**

** (1)**

**(2)**

and