How do you solve #3c + 5( 0.05) = 7c + 4( 0.05)#?

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Answer 1 · 2017-05-02T19:41:35

A 'sort of' cheat method (not really).

#c=0.0125#

Don't like decimals so lets get rid of them.

Multiply everything by 100

#300c+5(5)=700c+4(5) larr" bit of a cheat but it does work!"#

#300c+25=700c+20#

#700c-300c=25-20#

#400c=5#

#c=5/400#

#c=5/4xx1/100#

#c=1.25xx1/100#

#c=0.0125#