21-9x=-6

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Solution for 21-9x=-6 equation:


Simplifying
21 + -9x = -6

Solving
21 + -9x = -6

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -9x = -6 + -21

Combine like terms: 21 + -21 = 0
0 + -9x = -6 + -21
-9x = -6 + -21

Combine like terms: -6 + -21 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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