3x+8=12x+9

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Solution for 3x+8=12x+9 equation:


Simplifying
3x + 8 = 12x + 9

Reorder the terms:
8 + 3x = 12x + 9

Reorder the terms:
8 + 3x = 9 + 12x

Solving
8 + 3x = 9 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
8 + 3x + -12x = 9 + 12x + -12x

Combine like terms: 3x + -12x = -9x
8 + -9x = 9 + 12x + -12x

Combine like terms: 12x + -12x = 0
8 + -9x = 9 + 0
8 + -9x = 9

Add '-8' to each side of the equation.
8 + -8 + -9x = 9 + -8

Combine like terms: 8 + -8 = 0
0 + -9x = 9 + -8
-9x = 9 + -8

Combine like terms: 9 + -8 = 1
-9x = 1

Divide each side by '-9'.
x = -0.1111111111

Simplifying
x = -0.1111111111

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