To solve the equation \( -4 = \frac{r}{20} - 5 \), follow these steps:

1. **Isolate the term with \( r \)**:
   \[
   -4 + 5 = \frac{r}{20}
   \]
   \[
   1 = \frac{r}{20}
   \]

2. **Solve for \( r \)** by multiplying both sides of the equation by 20:
   \[
   1 \times 20 = r
   \]
   \[
   r = 20
   \]

So, the solution is \( r = 20 \).

Would you like more details on any part of the solution? Here are some related questions:

1. What steps should you take to isolate a variable in an equation?
2. How can you check if the solution \( r = 20 \) is correct?
3. What happens if there are multiple variables in the equation?
4. How do you deal with equations involving decimals or fractions?
5. Can this method be used to solve inequalities?

**Tip:** Always perform the inverse operations in the reverse order of the operations applied to the variable to isolate it.

Learn how to solve the equation -4 = r/20 - 5 step-by-step with detailed explanations. This problem involves isolating variables in equations, suitable for Grades 7-9 students.

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