(c-21)(x+21)=0

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Solution for (c-21)(x+21)=0 equation:


Simplifying
(c + -21)(x + 21) = 0

Reorder the terms:
(-21 + c)(x + 21) = 0

Reorder the terms:
(-21 + c)(21 + x) = 0

Multiply (-21 + c) * (21 + x)
(-21(21 + x) + c(21 + x)) = 0
((21 * -21 + x * -21) + c(21 + x)) = 0
((-441 + -21x) + c(21 + x)) = 0
(-441 + -21x + (21 * c + x * c)) = 0
(-441 + -21x + (21c + cx)) = 0

Reorder the terms:
(-441 + 21c + cx + -21x) = 0
(-441 + 21c + cx + -21x) = 0

Solving
-441 + 21c + cx + -21x = 0

Solving for variable 'c'.

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

Add '441' to each side of the equation.
-441 + 21c + cx + 441 + -21x = 0 + 441

Reorder the terms:
-441 + 441 + 21c + cx + -21x = 0 + 441

Combine like terms: -441 + 441 = 0
0 + 21c + cx + -21x = 0 + 441
21c + cx + -21x = 0 + 441

Combine like terms: 0 + 441 = 441
21c + cx + -21x = 441

Add '21x' to each side of the equation.
21c + cx + -21x + 21x = 441 + 21x

Combine like terms: -21x + 21x = 0
21c + cx + 0 = 441 + 21x
21c + cx = 441 + 21x

Reorder the terms:
-441 + 21c + cx + -21x = 441 + 21x + -441 + -21x

Reorder the terms:
-441 + 21c + cx + -21x = 441 + -441 + 21x + -21x

Combine like terms: 441 + -441 = 0
-441 + 21c + cx + -21x = 0 + 21x + -21x
-441 + 21c + cx + -21x = 21x + -21x

Combine like terms: 21x + -21x = 0
-441 + 21c + cx + -21x = 0

The solution to this equation could not be determined.

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