8x+4=12x-9

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Solution for 8x+4=12x-9 equation:


Simplifying
8x + 4 = 12x + -9

Reorder the terms:
4 + 8x = 12x + -9

Reorder the terms:
4 + 8x = -9 + 12x

Solving
4 + 8x = -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.
4 + 8x + -12x = -9 + 12x + -12x

Combine like terms: 8x + -12x = -4x
4 + -4x = -9 + 12x + -12x

Combine like terms: 12x + -12x = 0
4 + -4x = -9 + 0
4 + -4x = -9

Add '-4' to each side of the equation.
4 + -4 + -4x = -9 + -4

Combine like terms: 4 + -4 = 0
0 + -4x = -9 + -4
-4x = -9 + -4

Combine like terms: -9 + -4 = -13
-4x = -13

Divide each side by '-4'.
x = 3.25

Simplifying
x = 3.25

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