\(x+2^4=2^{1000}\div2^{995}\)
\(x+2^4=2^{1000-995}\)
\(x+2^4=2^5\)
\(x=2^5-2^4\)
\(x=32-16\)
\(x=16\)
x+2^4=2^1000:2^995
x+2^4=2^(1000-995)
x+2^4=2^5
x=2^5-2^4
x=32-16
x=16
\(x+2^4=2^{1000-995}\Leftrightarrow x+2^4=2^5\Rightarrow x=2^5-2^4=32-16=16\)