200=x-21x

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Solution for 200=x-21x equation:


Simplifying
200 = x + -21x

Combine like terms: x + -21x = -20x
200 = -20x

Solving
200 = -20x

Solving for variable 'x'.

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

Add '20x' to each side of the equation.
200 + 20x = -20x + 20x

Combine like terms: -20x + 20x = 0
200 + 20x = 0

Add '-200' to each side of the equation.
200 + -200 + 20x = 0 + -200

Combine like terms: 200 + -200 = 0
0 + 20x = 0 + -200
20x = 0 + -200

Combine like terms: 0 + -200 = -200
20x = -200

Divide each side by '20'.
x = -10

Simplifying
x = -10

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