DerpyDerpGirl DerpyDerpGirl

07-01-2016
Mathematics

Answered

what are the steps to solve 3.5(c-8)+c=12.5? I already went on a different website and found out the answer is nine. I plugged it in and it was correct, but I would like to see how to do it because I am still clueless about how to get this answer

Verified Answer :

Billymkhoi Billymkhoi

07-01-2016

3.5(c-8)+c = 12.5
⇒ 3.5c- 3.5*8+ c= 12.5 (distributive property)
⇒ (3.5c+ c) -28= 12.5
⇒ 4.5c= 12.5+ 28
⇒ 4.5c= 40.5
⇒ c= 40.5/ 4.5
⇒ c= 9

The correct answer is 9~

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