Question

9^n+1-2×9^n=10^n. please solve this I will mark you the brainlist​

Answer 1

the value of n is 0(zero)

explanation step by step:

for n=0 the above sum is right if the valu of n is not zero then the value won't be 7

Answer 2

Step-by-step explanation:

9n+1×9n=7+2

9n =7+2-1

9n= 8

n=8/9