5x+123=12x-3

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Solution for 5x+123=12x-3 equation:


Simplifying
5x + 123 = 12x + -3

Reorder the terms:
123 + 5x = 12x + -3

Reorder the terms:
123 + 5x = -3 + 12x

Solving
123 + 5x = -3 + 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.
123 + 5x + -12x = -3 + 12x + -12x

Combine like terms: 5x + -12x = -7x
123 + -7x = -3 + 12x + -12x

Combine like terms: 12x + -12x = 0
123 + -7x = -3 + 0
123 + -7x = -3

Add '-123' to each side of the equation.
123 + -123 + -7x = -3 + -123

Combine like terms: 123 + -123 = 0
0 + -7x = -3 + -123
-7x = -3 + -123

Combine like terms: -3 + -123 = -126
-7x = -126

Divide each side by '-7'.
x = 18

Simplifying
x = 18

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