15x+3=12x-9

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Solution for 15x+3=12x-9 equation:


Simplifying
15x + 3 = 12x + -9

Reorder the terms:
3 + 15x = 12x + -9

Reorder the terms:
3 + 15x = -9 + 12x

Solving
3 + 15x = -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.
3 + 15x + -12x = -9 + 12x + -12x

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

Combine like terms: 12x + -12x = 0
3 + 3x = -9 + 0
3 + 3x = -9

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

Combine like terms: 3 + -3 = 0
0 + 3x = -9 + -3
3x = -9 + -3

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

Divide each side by '3'.
x = -4

Simplifying
x = -4

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