20=-20x-10+21x

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Solution for 20=-20x-10+21x equation:


Simplifying
20 = -20x + -10 + 21x

Reorder the terms:
20 = -10 + -20x + 21x

Combine like terms: -20x + 21x = 1x
20 = -10 + 1x

Solving
20 = -10 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
20 + -1x = -10 + 1x + -1x

Combine like terms: 1x + -1x = 0
20 + -1x = -10 + 0
20 + -1x = -10

Add '-20' to each side of the equation.
20 + -20 + -1x = -10 + -20

Combine like terms: 20 + -20 = 0
0 + -1x = -10 + -20
-1x = -10 + -20

Combine like terms: -10 + -20 = -30
-1x = -30

Divide each side by '-1'.
x = 30

Simplifying
x = 30

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