12x-30=3x+51

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Solution for 12x-30=3x+51 equation:


Simplifying
12x + -30 = 3x + 51

Reorder the terms:
-30 + 12x = 3x + 51

Reorder the terms:
-30 + 12x = 51 + 3x

Solving
-30 + 12x = 51 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
-30 + 12x + -3x = 51 + 3x + -3x

Combine like terms: 12x + -3x = 9x
-30 + 9x = 51 + 3x + -3x

Combine like terms: 3x + -3x = 0
-30 + 9x = 51 + 0
-30 + 9x = 51

Add '30' to each side of the equation.
-30 + 30 + 9x = 51 + 30

Combine like terms: -30 + 30 = 0
0 + 9x = 51 + 30
9x = 51 + 30

Combine like terms: 51 + 30 = 81
9x = 81

Divide each side by '9'.
x = 9

Simplifying
x = 9

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