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Help me please with this Simplify. 5a-12a
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3 votes
Help me please with this
Simplify.

5a-12a

User Melo
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1 Answer

2 votes
It helps to imagine the variable a sort of as a unit. Like with 5 minus 12 lemons, it has no bearings on the addition/subtraction here.

Factor out a and subtract.


5a-12a \\ (5-12)a \\ \boxed{-7a}
User Kristoff
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