Solve -20y=25

1. Start with the equation:

-20y = 25

2. Divide both sides by \( -20 \):

y = \frac{25}{-20}

3. Simplify the fraction by dividing the numerator and the denominator by their greatest common divisor, which is 5:

y = -\frac{25}{20} = -\frac{5}{4}

Therefore, the final answer is:

y = -\frac{5}{4}