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-21=-6+8(c+4)
We simplify the equation to the form, which is simple to understand
-21=-6+8(c+4)
Reorder the terms in parentheses
-21=-6+(+8c+32)
Remove unnecessary parentheses
-21=-6+8c+32
We move all terms containing c to the left and all other terms to the right.
-8c=-6+32+21
We simplify left and right side of the equation.
-8c=+47
We divide both sides of the equation by -08 to get c.
c=-5.875
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