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If x = a + 2b, y=2a – b, and z=.–2b , what is x – y + 2z?

If x = a + 2b, y=2a – b, and z=.–2b , what is x – y + 2z?
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3 votes
If x = a + 2b, y=2a – b, and z=.–2b , what is x – y + 2z?

asked
User QuarticCat
by
8.4k points

1 Answer

5 votes

Answer:

-a-3b

Explanation:

a+2b-2a-b+2(-2b)

-a+b-4b

-a-3b

-(a+3b)

answered
User Dpfauwadel
by
9.0k points
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