51=6x-21

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Solution for 51=6x-21 equation:


Simplifying
51 = 6x + -21

Reorder the terms:
51 = -21 + 6x

Solving
51 = -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.
51 + -6x = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
51 + -6x = -21 + 0
51 + -6x = -21

Add '-51' to each side of the equation.
51 + -51 + -6x = -21 + -51

Combine like terms: 51 + -51 = 0
0 + -6x = -21 + -51
-6x = -21 + -51

Combine like terms: -21 + -51 = -72
-6x = -72

Divide each side by '-6'.
x = 12

Simplifying
x = 12

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