(X+21)(x+21)=21

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Solution for (X+21)(x+21)=21 equation:


Simplifying
(X + 21)(x + 21) = 21

Reorder the terms:
(21 + X)(x + 21) = 21

Reorder the terms:
(21 + X)(21 + x) = 21

Multiply (21 + X) * (21 + x)
(21(21 + x) + X(21 + x)) = 21
((21 * 21 + x * 21) + X(21 + x)) = 21
((441 + 21x) + X(21 + x)) = 21
(441 + 21x + (21 * X + x * X)) = 21
(441 + 21x + (21X + xX)) = 21

Reorder the terms:
(441 + 21X + 21x + xX) = 21
(441 + 21X + 21x + xX) = 21

Solving
441 + 21X + 21x + xX = 21

Solving for variable 'X'.

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

Add '-441' to each side of the equation.
441 + 21X + 21x + -441 + xX = 21 + -441

Reorder the terms:
441 + -441 + 21X + 21x + xX = 21 + -441

Combine like terms: 441 + -441 = 0
0 + 21X + 21x + xX = 21 + -441
21X + 21x + xX = 21 + -441

Combine like terms: 21 + -441 = -420
21X + 21x + xX = -420

Add '-21x' to each side of the equation.
21X + 21x + -21x + xX = -420 + -21x

Combine like terms: 21x + -21x = 0
21X + 0 + xX = -420 + -21x
21X + xX = -420 + -21x

Reorder the terms:
420 + 21X + 21x + xX = -420 + -21x + 420 + 21x

Reorder the terms:
420 + 21X + 21x + xX = -420 + 420 + -21x + 21x

Combine like terms: -420 + 420 = 0
420 + 21X + 21x + xX = 0 + -21x + 21x
420 + 21X + 21x + xX = -21x + 21x

Combine like terms: -21x + 21x = 0
420 + 21X + 21x + xX = 0

The solution to this equation could not be determined.

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