We will investigate how to solve equations involving a single variable.
We have the following equation at hand:
[tex]-8c\text{ + 6 = -9c}[/tex]We will apply basic mathematical operations on the equation above and isolate the variable ( c ) on either side of the " = " sign.
Adding ( 8c ) on both sides of the equation:
[tex]\begin{gathered} -8c\text{ + 6 + 8c = -9c + 8c} \\ (\text{ 8c - 8c ) + 6 = -c} \\ 6\text{ = -c} \end{gathered}[/tex]Then multiply ( -1 ) on both sides of the equation as follows:
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