Question

If (–3)m + 1 × (–3)5 = (–3)7, then the value of m is __________.​

Answer 1

Answer:

m= 2

Step-by-step explanation:

• -3m + (-15) = -21
• -3m - 15 = -21
• -3m = -21 + 15
• -3m = -6
• 3m = 6
• m = 6/3
• m= 2