Which value of a would make the following statement true? -3(2x + a) = -6x + 15

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23-03-2017
Mathematics

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Which value of a would make the following statement true? -3(2x + a) = -6x + 15

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What is the parallel to the line x=15 and contains the point (-1,5)

baabaagreysheep baabaagreysheep · Answer 1 · 2017-03-23T18:48:16+01:00

baabaagreysheep baabaagreysheep

23-03-2017

Your answer is -5.
This is because, if you expand the single bracket, you get -6x -3a, and since the other side of the equals sign is -6x + 15, then you need to do 15 ÷ -3 = -5.

I hope this helps!

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