Answer
c=0.2
Work Step by Step
$4+6c=6-4c$ add 4c to both sides; subtract 4 from both sides
$4+6c+4c-4=6-4c+4c-4$ combine like terms
$10c=2$ divide both sides by 10
$10c\div10=2\div10$ simplify
$c=0.2$
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