3x+66=9x+12

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Solution for 3x+66=9x+12 equation:


Simplifying
3x + 66 = 9x + 12

Reorder the terms:
66 + 3x = 9x + 12

Reorder the terms:
66 + 3x = 12 + 9x

Solving
66 + 3x = 12 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
66 + 3x + -9x = 12 + 9x + -9x

Combine like terms: 3x + -9x = -6x
66 + -6x = 12 + 9x + -9x

Combine like terms: 9x + -9x = 0
66 + -6x = 12 + 0
66 + -6x = 12

Add '-66' to each side of the equation.
66 + -66 + -6x = 12 + -66

Combine like terms: 66 + -66 = 0
0 + -6x = 12 + -66
-6x = 12 + -66

Combine like terms: 12 + -66 = -54
-6x = -54

Divide each side by '-6'.
x = 9

Simplifying
x = 9

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