2c+7=21

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Solution for 2c+7=21 equation: 


Simplifying
2c + 7 = 21

Reorder the terms:
7 + 2c = 21

Solving
7 + 2c = 21

Solving for variable 'c'.

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

Add '-7' to each side of the equation.
7 + -7 + 2c = 21 + -7

Combine like terms: 7 + -7 = 0
0 + 2c = 21 + -7
2c = 21 + -7

Combine like terms: 21 + -7 = 14
2c = 14

Divide each side by '2'.
c = 7

Simplifying
c = 7

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