3x+12=9x+39

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Solution for 3x+12=9x+39 equation:


Simplifying
3x + 12 = 9x + 39

Reorder the terms:
12 + 3x = 9x + 39

Reorder the terms:
12 + 3x = 39 + 9x

Solving
12 + 3x = 39 + 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 = 39 + 9x + -9x

Combine like terms: 3x + -9x = -6x
12 + -6x = 39 + 9x + -9x

Combine like terms: 9x + -9x = 0
12 + -6x = 39 + 0
12 + -6x = 39

Add '-12' to each side of the equation.
12 + -12 + -6x = 39 + -12

Combine like terms: 12 + -12 = 0
0 + -6x = 39 + -12
-6x = 39 + -12

Combine like terms: 39 + -12 = 27
-6x = 27

Divide each side by '-6'.
x = -4.5

Simplifying
x = -4.5

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