-21=1-2x

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Solution for -21=1-2x equation:


Simplifying
-21 = 1 + -2x

Solving
-21 = 1 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
-21 + 2x = 1 + -2x + 2x

Combine like terms: -2x + 2x = 0
-21 + 2x = 1 + 0
-21 + 2x = 1

Add '21' to each side of the equation.
-21 + 21 + 2x = 1 + 21

Combine like terms: -21 + 21 = 0
0 + 2x = 1 + 21
2x = 1 + 21

Combine like terms: 1 + 21 = 22
2x = 22

Divide each side by '2'.
x = 11

Simplifying
x = 11

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