123=5x-2(-2x-12)

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Solution for 123=5x-2(-2x-12) equation:


Simplifying
123 = 5x + -2(-2x + -12)

Reorder the terms:
123 = 5x + -2(-12 + -2x)
123 = 5x + (-12 * -2 + -2x * -2)
123 = 5x + (24 + 4x)

Reorder the terms:
123 = 24 + 5x + 4x

Combine like terms: 5x + 4x = 9x
123 = 24 + 9x

Solving
123 = 24 + 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.
123 + -9x = 24 + 9x + -9x

Combine like terms: 9x + -9x = 0
123 + -9x = 24 + 0
123 + -9x = 24

Add '-123' to each side of the equation.
123 + -123 + -9x = 24 + -123

Combine like terms: 123 + -123 = 0
0 + -9x = 24 + -123
-9x = 24 + -123

Combine like terms: 24 + -123 = -99
-9x = -99

Divide each side by '-9'.
x = 11

Simplifying
x = 11

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