3x-4x=3(x+6)

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Solution for 3x-4x=3(x+6) equation:


Simplifying
3x + -4x = 3(x + 6)

Combine like terms: 3x + -4x = -1x
-1x = 3(x + 6)

Reorder the terms:
-1x = 3(6 + x)
-1x = (6 * 3 + x * 3)
-1x = (18 + 3x)

Solving
-1x = 18 + 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.
-1x + -3x = 18 + 3x + -3x

Combine like terms: -1x + -3x = -4x
-4x = 18 + 3x + -3x

Combine like terms: 3x + -3x = 0
-4x = 18 + 0
-4x = 18

Divide each side by '-4'.
x = -4.5

Simplifying
x = -4.5

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