2x-12+6x-21=6x+21

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Solution for 2x-12+6x-21=6x+21 equation:


Simplifying
2x + -12 + 6x + -21 = 6x + 21

Reorder the terms:
-12 + -21 + 2x + 6x = 6x + 21

Combine like terms: -12 + -21 = -33
-33 + 2x + 6x = 6x + 21

Combine like terms: 2x + 6x = 8x
-33 + 8x = 6x + 21

Reorder the terms:
-33 + 8x = 21 + 6x

Solving
-33 + 8x = 21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-33 + 8x + -6x = 21 + 6x + -6x

Combine like terms: 8x + -6x = 2x
-33 + 2x = 21 + 6x + -6x

Combine like terms: 6x + -6x = 0
-33 + 2x = 21 + 0
-33 + 2x = 21

Add '33' to each side of the equation.
-33 + 33 + 2x = 21 + 33

Combine like terms: -33 + 33 = 0
0 + 2x = 21 + 33
2x = 21 + 33

Combine like terms: 21 + 33 = 54
2x = 54

Divide each side by '2'.
x = 27

Simplifying
x = 27

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