To simplify the expression \( mn + 10 + 7(n - 1) \), follow these steps: 1. Distribute the \( 7 \) in the term \( 7(n - 1) \): \[ 7(n - 1) = 7n - 7 \] 2. Substitute this back into the expression: \[ mn + 10 + 7n - 7 \] 3. Combine the constant terms \( 10 \) and \( -7 \): \[ 10 - 7 = 3 \] 4. The simplified expression is: \[ mn + 7n + 3 \] So, \( mn + 10 + 7(n - 1) \) simplifies to \( mn + 7n + 3 \).

mn+10+7(n-1)

1 answer

To simplify the expression \( mn + 10 + 7(n - 1) \), follow these steps:

Distribute the \( 7 \) in the term \( 7(n - 1) \): \[ 7(n - 1) = 7n - 7 \]
Substitute this back into the expression: \[ mn + 10 + 7n - 7 \]
Combine the constant terms \( 10 \) and \( -7 \): \[ 10 - 7 = 3 \]
The simplified expression is: \[ mn + 7n + 3 \]

So, \( mn + 10 + 7(n - 1) \) simplifies to \( mn + 7n + 3 \).