Evaluate Using the Given Value 3(m-4)-n(m-4) if m=5 and n=3

$3 \cdot (m - 4) - n \cdot (m - 4)$ if $m = 5$ and $n = 3$

Step 1

Replace the variable $m$ with $5$ in the expression.

$3 \cdot ((5) - 4) - n \cdot ((5) - 4)$

Step 2

Replace the variable $n$ with $3$ in the expression.

$3 \cdot ((5) - 4) - 3 \cdot ((5) - 4)$

Step 3

Simplify each term.

Subtract $4$ from $5$ .

$3 \cdot 1 - 3 \cdot ((5) - 4)$

Multiply $3$ by $1$ .

$3 - 3 \cdot ((5) - 4)$

Subtract $4$ from $5$ .

$3 - 3 \cdot 1$

Multiply $- 3$ by $1$ .

$3 - 3$

Step 4

Subtract $3$ from $3$ .

$0$

Evaluate Using the Given Value 3*(m-4)-n*(m-4) if m=5 and n=3