Despite trailing 18-5 at the break, Edinburgh gave themselves a chance of getting back in the game when David Denton touched down but another try failed to materialise with JP Nel knocking on just five metres from the line.
Solomons admits his side's high error count cost them from getting a result but with their next match away at Kingsholm on Sunday, he's aiming for a win to help the wider picture.
"It's always possible to win away and we will be fully committed to putting in a performance but the odds are definitely stacked against us in this group," he said.
"If you lose a home game it makes it very difficult. It doesn't mean you are out of the competition, but it makes it very difficult.
"We lacked a bit of sharpness and a bit of urgency. We made too many errors. It wasn't a good performance by us across the board. We didn't do ourselves justice.
"At 23-12 we were down on the right hand touchline. That was a key moment in the game because Denton gave us huge momentum under the posts.
"Had we scored there we'd have gone from 23-12 to 23-19 and I think that would have changed the whole complexion of the game, and that was the big opportunity that we missed. We didn't stick to our systems and that cost us dearly."
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