cd+e=21

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Solution for cd+e=21 equation: 


Simplifying
cd + e = 21

Solving
cd + e = 21

Solving for variable 'c'.

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

Add '-1e' to each side of the equation.
cd + e + -1e = 21 + -1e

Combine like terms: e + -1e = 0
cd + 0 = 21 + -1e
cd = 21 + -1e

Divide each side by 'd'.
c = 21d-1 + -1d-1e

Simplifying
c = 21d-1 + -1d-1e

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