21+3c=75

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Solution for 21+3c=75 equation: 


Simplifying
21 + 3c = 75

Solving
21 + 3c = 75

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 = 75 + -21

Combine like terms: 21 + -21 = 0
0 + 3c = 75 + -21
3c = 75 + -21

Combine like terms: 75 + -21 = 54
3c = 54

Divide each side by '3'.
c = 18

Simplifying
c = 18

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