You can try out Algebrator. This literally helps you solve questions in math very fast. You can plug in the questions and this product will go through it with you step by step so you will be able to understand better as you solve them. There are some demos available so you can also take a look and see how incredibly helpful the program is. I am sure your 7th grade algebra printouts can be solved faster here.
When I was in school , I faced similar problems with subtracting exponents, linear inequalities and inverse matrices. But this superb Algebrator helped me through all my Algebra 1, Remedial Algebra, and Pre Algebra. I only typed in a problem from my workbook, and step by step solution to my algebra homework would appear on the screen by clicking on Solve. I truly recommend the Algebrator.
Algebrator is the program that I have used through several math classes - Remedial Algebra, Algebra 1 and Algebra 1. It is a really a great piece of math software. I remember of going through difficulties with adding functions, function composition and complex fractions. I would simply type in a problem homework, click on Solve – and step by step solution to my math homework. I highly recommend the program.