20x-20=21x

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Solution for 20x-20=21x equation:


Simplifying
20x + -20 = 21x

Reorder the terms:
-20 + 20x = 21x

Solving
-20 + 20x = 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
-20 + 20x + -21x = 21x + -21x

Combine like terms: 20x + -21x = -1x
-20 + -1x = 21x + -21x

Combine like terms: 21x + -21x = 0
-20 + -1x = 0

Add '20' to each side of the equation.
-20 + 20 + -1x = 0 + 20

Combine like terms: -20 + 20 = 0
0 + -1x = 0 + 20
-1x = 0 + 20

Combine like terms: 0 + 20 = 20
-1x = 20

Divide each side by '-1'.
x = -20

Simplifying
x = -20

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