81^3 = (9^2)^3 = 9^6
so
9^6(x+1) = 9^2(x-1)
so
6 x + 6 = x - 1
5 x = -7
x =-5/7
81^3(x+1) = 9^2(x-1)
Solve this equation by expressing both sides as powers of 9.
1 answer
Solve this equation by expressing both sides as powers of 9.
1 answer