Question 63362
-7+5+5c=25
Add 7 to each side
5=5c=32
Subtract 5 from each side
5c=27
Divid 5c to each side 
5c=27
27 divided by 5= 5.4 or 5 and 4/10
C=5.4 or 5 and 4/10


Check

    -7+5+5c=25
-7+5+5(5.4)=25
    -7+5+27=25
      -2+27=25
         25=25