Questions: 8y-9y

Transcript text: $8 y-9 y$

Solution

Step 1: Identify Like Terms

The expression $8y - 9y$ contains like terms because both terms have the same variable $y$.

Step 2: Combine the Coefficients

Subtract the coefficients of the like terms: $8 - 9 = -1$.

Step 3: Write the Simplified Expression

Multiply the result by the variable $y$: $-1 \cdot y = -y$.

$\boxed{-y}$

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