kemmanibad kemmanibad

03-05-2018
Chemistry

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Twice bill's number added to 17 is 7. What is his number

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Plasma72 Plasma72

03-05-2018

-5.

-5 * 2 = -10
-10 + 17 = 7

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anonymous12345678901 anonymous12345678901

03-05-2018

Let b=bills number
2b+17=7
Subtract 17 from both sides
2b=-10
Divide both sides by 2
b=-5
Bill’s number is -5

I hope this helps )

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