12x-4+9x+6=4x-66

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Solution for 12x-4+9x+6=4x-66 equation:


Simplifying
12x + -4 + 9x + 6 = 4x + -66

Reorder the terms:
-4 + 6 + 12x + 9x = 4x + -66

Combine like terms: -4 + 6 = 2
2 + 12x + 9x = 4x + -66

Combine like terms: 12x + 9x = 21x
2 + 21x = 4x + -66

Reorder the terms:
2 + 21x = -66 + 4x

Solving
2 + 21x = -66 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
2 + 21x + -4x = -66 + 4x + -4x

Combine like terms: 21x + -4x = 17x
2 + 17x = -66 + 4x + -4x

Combine like terms: 4x + -4x = 0
2 + 17x = -66 + 0
2 + 17x = -66

Add '-2' to each side of the equation.
2 + -2 + 17x = -66 + -2

Combine like terms: 2 + -2 = 0
0 + 17x = -66 + -2
17x = -66 + -2

Combine like terms: -66 + -2 = -68
17x = -68

Divide each side by '17'.
x = -4

Simplifying
x = -4

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