so·lu·tion
a. The method or process of solving a problem.
b. The answer to or disposition of a problem.

ser·vice
a. Installation, maintenance, or repairs provided or guaranteed by a dealer or manufacturer.
b. To make fit for use; adjust, repair, or maintain: service a pc.
c. To provide services to.

sup·port
a. Maintenance
b. One that supports.
c. To provide for or maintain.