Question

if 3^a+b=81 and (81)^a-b=3 find the value of a and b​

Answer 1

a=1,b=78

Step-by-step explanation:

3^a+b=81

81^a-b=3

adding both

3^a+3^4a=84

3^a+3^4a=3+3^4

so comparing it we get

a=1

and b=78