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c+c-7=25
We simplify the equation to the form, which is simple to understand
c+c-7=25
We move all terms containing c to the left and all other terms to the right.
+1c+1c=+25+7
We simplify left and right side of the equation.
+2c=+32
We divide both sides of the equation by 2 to get c.
c=16
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