"direct solutions" is a correct and usable phrase in written English.
You could use it to describe a situation where a problem is solved quickly and easily, for example: "The team was able to find direct solutions to the problems they were facing."
Above each coin is a direct quotation from the site, followed by a few observations, followed by much simpler, direct solutions.
Perhaps if the rabbis in Israel looked as much to the meaning behind the law as to its intricacies, they could find better direct solutions for allowing the land to lie fallow than resorting to legal fictions.
Though they invariably overstate their case, their opposition would make a windfall tax a heavy lift politically, thereby draining effort from other, more direct, solutions, like better mileage standards and ultimately — the hardest sell of all — a bolstered federal gas tax to encourage conservation.
Direct solutions are important because of their computational efficiency.
In software there are direct solutions to definable problems like utility, ease of use or speed.
I am not sure what "direct" solutions exist given the limitations of government's response time.
'Bakri offered a direct solution: the establishment of Muslim state with a foreign policy of jihad.
Application of these laws to specific astrophysical problems, however, may yield equations too complex for direct solution.
And it's a sensible and direct solution for an industry without formalized barriers to entry or fiscal regulation.
(Mr. Greenspan, the former Federal Reserve chairman, who has never had to run for office, prefers the more direct solution of a carbon tax).
