3x+12=-9x-17

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Solution for 3x+12=-9x-17 equation: 


Simplifying
3x + 12 = -9x + -17

Reorder the terms:
12 + 3x = -9x + -17

Reorder the terms:
12 + 3x = -17 + -9x

Solving
12 + 3x = -17 + -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.
12 + 3x + 9x = -17 + -9x + 9x

Combine like terms: 3x + 9x = 12x
12 + 12x = -17 + -9x + 9x

Combine like terms: -9x + 9x = 0
12 + 12x = -17 + 0
12 + 12x = -17

Add '-12' to each side of the equation.
12 + -12 + 12x = -17 + -12

Combine like terms: 12 + -12 = 0
0 + 12x = -17 + -12
12x = -17 + -12

Combine like terms: -17 + -12 = -29
12x = -29

Divide each side by '12'.
x = -2.416666667

Simplifying
x = -2.416666667

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