7c+82=21c-100

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Solution for 7c+82=21c-100 equation:


Simplifying
7c + 82 = 21c + -100

Reorder the terms:
82 + 7c = 21c + -100

Reorder the terms:
82 + 7c = -100 + 21c

Solving
82 + 7c = -100 + 21c

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Add '-21c' to each side of the equation.
82 + 7c + -21c = -100 + 21c + -21c

Combine like terms: 7c + -21c = -14c
82 + -14c = -100 + 21c + -21c

Combine like terms: 21c + -21c = 0
82 + -14c = -100 + 0
82 + -14c = -100

Add '-82' to each side of the equation.
82 + -82 + -14c = -100 + -82

Combine like terms: 82 + -82 = 0
0 + -14c = -100 + -82
-14c = -100 + -82

Combine like terms: -100 + -82 = -182
-14c = -182

Divide each side by '-14'.
c = 13

Simplifying
c = 13

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