Question

7^m+1 X 7^3m-1 =343
Find m

Answer 1

Answer:

• 7m+1 × 7 ×3m = 343
• 8m×21m= 343+1
• 168m=344
• m=344-168
• m=176

i confused but i try this question

Answer 2

Answer:

i didn't understand........