Question

Simplify the expression if m = -7 and n = 4: 5m + 9n

Answer 1

If m = -7 and n = 4, then we can substitute these values into the expression:

5m + 9n = 5(-7) + 9(4)

= -35 + 36

= 1

Therefore, 5m + 9n simplifies to 1 when m = -7 and n = 4.

Explanation: