Some equations can be solved in a number of ways. However, the general method in this book will be the same:
1. Simplify
both sides of the equation.
2. Collect
all terms with variables in them on one side of the equation and all
nonvariable terms on the other (this is done by adding/ subtracting terms).
3. Factor
out the variable.
4. Divide
both sides of the equation by the variable’s coefficient (this is what has been
factored out in step 3).
Of course, you might need only one or two of these steps. In
the previous examples and practice problems, only step 4 was used.
In the following examples, the number of the step used will
be in parentheses. Although it will not normally be done here, it is a good
idea to verify your solution in the original equation.
Examples
Practice
Solutions
“Sumber Informasi”
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