The phrase "advised simply" is correct and usable in written English.
It can be used when you want to convey that someone has given straightforward or uncomplicated advice.
Example: "She advised simply that we should follow our instincts and trust our judgment."
Alternatives: "recommended plainly" or "suggested straightforwardly".
Yet it sometimes seems that Asian women who want to get on in politics would be well advised simply to marry a man with the same ambition.
Audiences, however, would be advised simply to enjoy the film on its face — even if that face is a carefully contrived mask.
At the most basic level, people in a sinkhole-prone zone are best advised simply to "look around them, at the adjacent land and buildings".
In "Your Home in a Changing Climate", a report from the Greater London Authority, homeowners are advised simply to reposition important things such as meters, boilers, electrical points and paperwork above flood level.
When children go through their Enid Blyton phase, parents are best advised simply to shovel the necessary volumes at their offspring, then hunker down and pray for literary daylight.
"I never advise simply knocking on a door, though - do whatever you can to knock that metaphorical door down".
Instead, he advises simply, "focus on the ball and hit" every time the ball meets the court and your racket.
Mr. Giese, who said his organization trains and certifies about 1,000 tutors a year, advises simply hiring a tutor; a good one should also teach organizational skills, he said.
Instead, they advise simply keeping asset allocations fixed — which would give you just as great a chance, if not greater, of hitting retirement targets as the conventional approach, while incurring no greater odds of falling short.
To be on the safe side, he advises simply wiping the wood with a soft, clean cloth.
And when doctors advise simply to step into the shower and empty the excess milk down the drain, you know you are in unreasonable territory.
