Write each of the following as an equation in two variables:
(i) `x=-5`
(ii) `y=2`
(iii) `2x=3`
(iv) `5y=2`

Explanation

To convert each of the given equations into an equation in two variables, we will introduce a variable that does not affect the equality. We will use the variable \( y \) for equations that currently only have \( x \), and the variable \( x \) for equations that currently only have \( y \).

### Step-by-Step Solution:

1. **For the equation \( x = -5 \)**:
- We can rewrite this equation by adding a term involving \( y \) with a coefficient of 0.
- The equation becomes:
\[
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