August 2022
Intermediate to advanced
640 pages
15h 59m
English
Content preview from Algebra II All-in-One For Dummies
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Chapter 2
Taking on Linear Equations and Inequalities
IN THIS CHAPTER
Isolating values of x in linear equations
Dealing with fractional terms
Assessing absolute value in equations and inequalities
The term linear has the word line buried in it, and the obvious connection is that you can graph many linear equations as lines. But linear expressions can come in many types of packages, not just equations of lines. Add an interesting operation or two, put several first-degree terms together, throw in a funny connective, and you can construct all sorts of creative mathematical challenges. In this chapter, you find out how to deal with linear equations in many shapes and sizes, what to do with the answers in linear inequalities, and how to rewrite linear absolute value equations and inequalities so that you can solve them quickly, efficiently, and correctly.
Variables on the Side: Solving Linear Equations
Linear equations feature variables that reach only the first degree, meaning that the highest power of any variable you solve for is one. The general form of a linear equation with one variable is
In this equation, the one variable is the x. The a, b, and c are coefficients and ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.