-6x+9=21-2x

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Solution for -6x+9=21-2x equation:


Simplifying
-6x + 9 = 21 + -2x

Reorder the terms:
9 + -6x = 21 + -2x

Solving
9 + -6x = 21 + -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.
9 + -6x + 2x = 21 + -2x + 2x

Combine like terms: -6x + 2x = -4x
9 + -4x = 21 + -2x + 2x

Combine like terms: -2x + 2x = 0
9 + -4x = 21 + 0
9 + -4x = 21

Add '-9' to each side of the equation.
9 + -9 + -4x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = 21 + -9
-4x = 21 + -9

Combine like terms: 21 + -9 = 12
-4x = 12

Divide each side by '-4'.
x = -3

Simplifying
x = -3

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