3x+12=12x-15

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Solution for 3x+12=12x-15 equation:


Simplifying
3x + 12 = 12x + -15

Reorder the terms:
12 + 3x = 12x + -15

Reorder the terms:
12 + 3x = -15 + 12x

Solving
12 + 3x = -15 + 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.
12 + 3x + -12x = -15 + 12x + -12x

Combine like terms: 3x + -12x = -9x
12 + -9x = -15 + 12x + -12x

Combine like terms: 12x + -12x = 0
12 + -9x = -15 + 0
12 + -9x = -15

Add '-12' to each side of the equation.
12 + -12 + -9x = -15 + -12

Combine like terms: 12 + -12 = 0
0 + -9x = -15 + -12
-9x = -15 + -12

Combine like terms: -15 + -12 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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