Question

find m such as (-3)m × (-3)5=(-3)7​

Answer 1

- 3 m × - 15 = - 21

- 3m = - 21/ - 15

- 3 m = 7/3

m = 7/3 × 3

m = 7

Answer 2

Step-by-step explanation:

$( - 3)m \times ( - 3)5 = ( - 3)7 \\ - 3m \times - 15 = - 21 \\ - 45m = - 21 \\ m = \frac{ - 21}{ - 45} \\ \\ m = \frac{7}{15}$

I hope it helps you