23=21-3x

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Solution for 23=21-3x equation:


Simplifying
23 = 21 + -3x

Solving
23 = 21 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
23 + 3x = 21 + -3x + 3x

Combine like terms: -3x + 3x = 0
23 + 3x = 21 + 0
23 + 3x = 21

Add '-23' to each side of the equation.
23 + -23 + 3x = 21 + -23

Combine like terms: 23 + -23 = 0
0 + 3x = 21 + -23
3x = 21 + -23

Combine like terms: 21 + -23 = -2
3x = -2

Divide each side by '3'.
x = -0.6666666667

Simplifying
x = -0.6666666667

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