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-15 = -2a + 9 - a -3

1 Answer

4 votes

Answer:

7:a

Explanation:

-15:-2a+9-a-3

-15:-3a+9-3

-15:-3a+6

-15-6:-3a

-21:-3a

Minus sign with be cancelled by each other

21:3a

21/3:a

7:a

User Vincent Ketelaars
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