angie1021 angie1021

14-05-2019
Mathematics

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If a+b+c=-4 and x+y=5. What is 9x-8c-8b-8a+9y?

If abc4 and xy5 What is 9x8c8b8a9y class=

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MonicaYan MonicaYan

14-05-2019

Answer: 77

x+y=5 then 9x+9y=45

a+b+c=-4 then -8a-8b-8c=32

Add them together and you’re get 9x-8c-8b-8a+9y=77

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