odgenme15 odgenme15

04-09-2017
Mathematics

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is -8 a solution of -9f=64-f

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texaschic101 texaschic101

04-09-2017

-9f = 64 - f...add f to both sides
-9f + f = 64
-8f = 64 ...divide both sides by -8
f = -64/8
f = -8 <=== yes, -8 is a solution

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