The local community college may offer a "basic skills" (or remedial) algebra course. Please be aware that a remedial course in algebra should NOT result in course credit, though.
In addition, a student may "audit" a college class, which refers to the student being required to attend every scheduled class but doesn't need to take exams or complete assignments. However, even if a student "audits" a class rather than opting to get a letter grade, he/she will still need to pay for the course, anyway, and indicate on the registration form of the intention to "audit" the class.
There should be more "advanced" (and/or GED) classes offered in algebra, such as through the local community college, too.
Also, the local "county" public vo-tech school, for instance, may offer GED courses to learn and/or brush up on algebra.
This website is supposed to have U.S. community colleges:
http://www.aacc.nche.edu/pages/ccfinder.aspx
This government website has more general career info:
http://www.bls.gov/ooh and can search "electricians" or such.
The previous website has more general info re: apprenticeships (though, it may help to already know someone in the Union, and an aptitude test is usually required to possibly get accepted as an "apprentice"):
http://www.bls.gov/careeroutlook/2013/summer/art01.pdf