If we try to solve 2(3+5x)=6+5x, we start by distributing the 2:
 2 ( 3 + 5x ) = 6 + 5x
 6 + 10x = 6 + 5x
Next, we'd subtract 5x from both sides:
 6 + 5x = 6 
Then we'd subtract 6 from both sides:
 5x = 0
Then we divide by 5 to fully isolate x:
 x = 0 
This equation is only true if x=0, so it would be "sometimes true" given the three options.