6x-6=9x+21

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


Simplifying
6x + -6 = 9x + 21

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

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

Solving
-6 + 6x = 21 + 9x

Solving for variable 'x'.

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

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

Combine like terms: 6x + -9x = -3x
-6 + -3x = 21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-6 + -3x = 21 + 0
-6 + -3x = 21

Add '6' to each side of the equation.
-6 + 6 + -3x = 21 + 6

Combine like terms: -6 + 6 = 0
0 + -3x = 21 + 6
-3x = 21 + 6

Combine like terms: 21 + 6 = 27
-3x = 27

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

Simplifying
x = -9

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