What is #c# in this equation #5c-c+10=34# ??

1 Answer
May 9, 2018

See explanation below

Explanation:

We need to find a value for c...The process is similar in all cases and it is as follows

First .- Order the expresion leaving the unknown value c in one side (lets say left side) and numbers in right side. Take care of signs!!

#5c-c=34-10#

Second .- Group similar terms (adding, multiplying, etc...)

#5c-c=4c# (five "apples" less one "apple" are four "apples")

#34-10=24#

We have then #4c=24#

Third .- find a solution. Transpose the c's coefficient (4 in this case) to other side. However it is multipliying, we move to other side dividing)

#c=24/4=6#

The only valid value for given equation is #c=6#. Lets check

#5·color(red)6-color(red)6+10=34#