str8fac3jay str8fac3jay

24-11-2018
Mathematics

contestada

Forty-five less than twice a number is five times that number . What is the number ?

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Joshkd02 Joshkd02

24-11-2018

2n=5n-45

3n=45

the number is 15

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taymiah1 taymiah1

25-11-2018

The answer is -15.

2n-45=5n
-2n -2n
——————-

-45=3n
—- —-
3 3

-15=n

2(-15)-45=5(-15)

-30-45=-75

-75=-75

Answer Link

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