Combine Like Terms: Step Title: Combine Like TermsConcise Step Description: Move all terms involving a to one side and constants to the other side.Step Calculation: 5+2a−a=a−a−9; Simplifies to a+5=−9
Isolate the Variable: Step Title: Isolate the VariableConcise Step Description: Subtract 5 from both sides to isolate 'a'.Step Calculation: a+5−5=−9−5; Simplifies to a=−14