15x-15=3x-129

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Solution for 15x-15=3x-129 equation:


Simplifying
15x + -15 = 3x + -129

Reorder the terms:
-15 + 15x = 3x + -129

Reorder the terms:
-15 + 15x = -129 + 3x

Solving
-15 + 15x = -129 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.
-15 + 15x + -3x = -129 + 3x + -3x

Combine like terms: 15x + -3x = 12x
-15 + 12x = -129 + 3x + -3x

Combine like terms: 3x + -3x = 0
-15 + 12x = -129 + 0
-15 + 12x = -129

Add '15' to each side of the equation.
-15 + 15 + 12x = -129 + 15

Combine like terms: -15 + 15 = 0
0 + 12x = -129 + 15
12x = -129 + 15

Combine like terms: -129 + 15 = -114
12x = -114

Divide each side by '12'.
x = -9.5

Simplifying
x = -9.5

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