6x-12-21=0

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Solution for 6x-12-21=0 equation:


Simplifying
6x + -12 + -21 = 0

Reorder the terms:
-12 + -21 + 6x = 0

Combine like terms: -12 + -21 = -33
-33 + 6x = 0

Solving
-33 + 6x = 0

Solving for variable 'x'.

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

Add '33' to each side of the equation.
-33 + 33 + 6x = 0 + 33

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

Combine like terms: 0 + 33 = 33
6x = 33

Divide each side by '6'.
x = 5.5

Simplifying
x = 5.5

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