Question

Step by step explanation please!
if 2^x+3=4^x-1 , find x

Answer 1

Answer:

2 ^x + 3 = 4^x -1

3 +1 = 4^x -2 ^x

4 = 2 ^ 2x 2 ^x

4 = 2 ^2x - x

2² = 2 ^x

=> x = 2