Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, solve the number.

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28-11-2014
Mathematics

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Nine fewer than half a number is five more than four times the number. Define a variable, write an equation, solve the number.

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Аноним Аноним · Answer 1 · 2014-11-28T23:12:23-05:00

Аноним Аноним

28-11-2014

n = the number

[tex] \frac{1}{2}n - 9=4n+5 \\ ( \frac{1}{2}n - \frac{1}{2}n)-9=(4n- \frac{1}{2}n)+5 \\ -9=3.5n+5 \\ (-9-5)=3.5n+(5-5) \\ -14=3.5n \\ \frac{-14}{3.5} = \frac{3.5n}{3.5} \\ -4=n[/tex]

The number is -4

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