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05-01-2017
Mathematics

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Justine evaluated this expression for a certain value of s and got 13. What was the value of s?
15 + s / 3 - 6

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xxamari xxamari

05-01-2017

15+s / 3-6 simplify to 15+s / -3
Set that equal to 13 because it's the solution.
15+s / -3 = 13
Multiply both sides by -3.
15+s = -39
Subtract 15.
s = -54

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