126=3x+3(4x-3)

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Solution for 126=3x+3(4x-3) equation:


Simplifying
126 = 3x + 3(4x + -3)

Reorder the terms:
126 = 3x + 3(-3 + 4x)
126 = 3x + (-3 * 3 + 4x * 3)
126 = 3x + (-9 + 12x)

Reorder the terms:
126 = -9 + 3x + 12x

Combine like terms: 3x + 12x = 15x
126 = -9 + 15x

Solving
126 = -9 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
126 + -15x = -9 + 15x + -15x

Combine like terms: 15x + -15x = 0
126 + -15x = -9 + 0
126 + -15x = -9

Add '-126' to each side of the equation.
126 + -126 + -15x = -9 + -126

Combine like terms: 126 + -126 = 0
0 + -15x = -9 + -126
-15x = -9 + -126

Combine like terms: -9 + -126 = -135
-15x = -135

Divide each side by '-15'.
x = 9

Simplifying
x = 9

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