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2.5−2.5y=

5

1 answer

To solve the equation \( 2.5 - 2.5y = 5 \), follow these steps:

  1. Subtract \( 2.5 \) from both sides:

\[ -2.5y = 5 - 2.5 \] \[ -2.5y = 2.5 \]

  1. Now, divide both sides by \( -2.5 \):

\[ y = \frac{2.5}{-2.5} \] \[ y = -1 \]

So the solution is \( y = -1 \).