2^2004 + x = 2^2005
x=2^2004
Thanks, guest......here's the "working"
2^2004 + x = 2^2005 subtract 2^2004 from both sides
x = 2^ 2005 - 2^2004 factor
x = 2^2004 (2 - 1)
x = 2^2004 * 1 = 2^2004
