3x-12=51

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Solution for 3x-12=51 equation: 


Simplifying
3x + -12 = 51

Reorder the terms:
-12 + 3x = 51

Solving
-12 + 3x = 51

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 3x = 51 + 12

Combine like terms: -12 + 12 = 0
0 + 3x = 51 + 12
3x = 51 + 12

Combine like terms: 51 + 12 = 63
3x = 63

Divide each side by '3'.
x = 21

Simplifying
x = 21

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