To solve the equation: \large 3n+9+4n=2, give the reasons for each of the given steps. What was done to the previous step to get to the current equation? You can use the same reason more than once.
\large 7n+9=2
\large 7n+9-9=2-9
\large 7n=-7
\large n=-1 Division as the inverse operation to isolate the variable
Word Bank:
Addition as the inverse operation to isolate the variableSubtraction as the inverse operation to isolate the variableMultiplication as the inverse operation to isolate the variable Division as the inverse operation to isolate the variable combine Like Terms Combine Like Terms
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Blank 4:Division as the inverse operation to isolate the variable