27-2x=21

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Solution for 27-2x=21 equation: 


Simplifying
27 + -2x = 21

Solving
27 + -2x = 21

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + -2x = 21 + -27

Combine like terms: 27 + -27 = 0
0 + -2x = 21 + -27
-2x = 21 + -27

Combine like terms: 21 + -27 = -6
-2x = -6

Divide each side by '-2'.
x = 3

Simplifying
x = 3

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