Question

3m + 9 / n when m is 4 and n is -3

Answer 1

Substitute the 4 and -3 for m and n in the expression.

3m+9÷n

3(4)+9÷(-3)

Using the rules of PEMDAS, first multiply/divide, then add.

12+9÷(-3)

12+(-3)

9

The final answer is 9.