Killakarii Killakarii

06-09-2019
Mathematics

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Four times a number decreased by 25
is the same as 9 times the number.
Find the number.

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Allosaurian Allosaurian

06-09-2019

4x - 25 = 9x

9x - 4x = -25

5x = -25

x = -5

4 ( -5 ) -25 = 9 ( -5 )

-20 - 25 = - 45

-45 = -45

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