-6x+9=21

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Solution for -6x+9=21 equation: 


Simplifying
-6x + 9 = 21

Reorder the terms:
9 + -6x = 21

Solving
9 + -6x = 21

Solving for variable 'x'.

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

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

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

Combine like terms: 21 + -9 = 12
-6x = 12

Divide each side by '-6'.
x = -2

Simplifying
x = -2

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