Game Development Reference
In-Depth Information
c.
4x
4
6
3
þ 3
>
d.
6b
2
10 20
3
4
x
5
8
e.
f. x
< 3
g. x 4
h. x 20 6
i. 5z þ 13
>
28
j. 9z
< 81
Conclusion
In this chapter, you have examined different ways to solve equations. You started
out with the notion that an equation involves a relation of equality or balance. To
solve an equation, you engage in a process of changing the equation in a way that
sustains the balance but at the same time allows you to isolate a given variable so
that you can determine its value. To solve equations, you use the properties of
addition and multiplication. You use these properties to ''undo'' operations that
the equation contains. In addition to working with addition and multiplication
(which includes subtraction and division), you also dealt with the use of least
common denominators to clear fractions from equations. You also worked with
absolute values, which leave you with equations that have two solutions, and
inequalities, which often leave you with extended sets with an indefinite number
of elements.
