3c-21=102

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Solution for 3c-21=102 equation: 


Simplifying
3c + -21 = 102

Reorder the terms:
-21 + 3c = 102

Solving
-21 + 3c = 102

Solving for variable 'c'.

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

Add '21' to each side of the equation.
-21 + 21 + 3c = 102 + 21

Combine like terms: -21 + 21 = 0
0 + 3c = 102 + 21
3c = 102 + 21

Combine like terms: 102 + 21 = 123
3c = 123

Divide each side by '3'.
c = 41

Simplifying
c = 41

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