Painless Algebra

From the same series as Painless Grammar, Painless Algebra is one of the easiest nonfiction books to read, though it may seem hard at first. From 3x(3x)=x3 to 5+5x/(-2)=38/2+x, this book has all of the math problems: the ordinary, and then some.

I really think that this book is very useful because I didn't know that to add two terms, they have to be like terms and use the same variables or else that is as far as you can simplify it. I didn't know that 3x+4x is 7x instead of 7xx. Also, I didn't know the three steps for figuring out variables in the equation above. I didn't know that lines on graphs have equations. Here is the rule that all lines follow: y=mx+b. M stands for the slope, and X and Y are the coordinates from one dot on the line. (For more information on the slopes of lines, check out chapter five.) Tons of useful information resides in this book, which I think was a great idea.