The phrase "are not difficult to solve" is correct and usable in written English.
You can use it when discussing problems, puzzles, or challenges that can be resolved with relative ease.
Example: "The math problems in this exercise are not difficult to solve, making it suitable for beginners."
Alternatives: "are easy to resolve" or "are simple to tackle".
It's not difficult to solve.
If we use the netted FSR, it is not difficult to solve the ambiguity problem of crossing position.
The mystery isn't difficult to solve, the characters (including the newly identified baby brother) return home, and the regular cast of computer-animated characters (including Mr. Pepper and Mrs. Salt, who are French, and their children, Cinnamon and Paprika) gather at home for Blue's birthday party.
It is not difficult to see that solving (15) requires at most n matrix inversions and n 2+2n matrix multiplications of (S_{r}^{(j)}(Z))'s.
It is not difficult to verify that solving (2.1) is equivalent to the fixed point problem of finding x ˜ ∈ C such that x ˜ = P Fix ( T ) ∩ Fix ∩ Ξ S x ˜, where P Fix ( T ) ∩ Fix ∩ Ξ stands for the metric projection onto the closed convex set Fix ( T ) ∩ Fix ∩ Ξ. Problem (2.1) contains the hierarchical variational inequality problems considered and studied in [8, 18, 19] and the references therein.
It is not difficult to see that the fixed point solves (1.1) and (1.2).
"Bad things always happen, of course they will, but some of this is really not difficult to solve". An NHS "serious incident" is an event which leads to an "unexpected or avoidable death" or "harm or injury" to a patient, carer, member of staff or visitor, the Local Democracy Reporting Service said.
As if complex problems are not difficult enough to solve by themselves, it typically does not make things easier if they are to be managed in a democratic or democratically legitimate way [8].
"Those are not difficult problems to solve," he said.
