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omeli [17]
3 years ago
8

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

Mathematics
1 answer:
Oduvanchick [21]3 years ago
4 0
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}
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===============================================

Work Shown:

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