4x-9=12x+39

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Solution for 4x-9=12x+39 equation:


Simplifying
4x + -9 = 12x + 39

Reorder the terms:
-9 + 4x = 12x + 39

Reorder the terms:
-9 + 4x = 39 + 12x

Solving
-9 + 4x = 39 + 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.
-9 + 4x + -12x = 39 + 12x + -12x

Combine like terms: 4x + -12x = -8x
-9 + -8x = 39 + 12x + -12x

Combine like terms: 12x + -12x = 0
-9 + -8x = 39 + 0
-9 + -8x = 39

Add '9' to each side of the equation.
-9 + 9 + -8x = 39 + 9

Combine like terms: -9 + 9 = 0
0 + -8x = 39 + 9
-8x = 39 + 9

Combine like terms: 39 + 9 = 48
-8x = 48

Divide each side by '-8'.
x = -6

Simplifying
x = -6

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