3[x-4]=18x

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Solution for 3[x-4]=18x equation:


Simplifying
3[x + -4] = 18x

Reorder the terms:
3[-4 + x] = 18x
[-4 * 3 + x * 3] = 18x
[-12 + 3x] = 18x

Solving
-12 + 3x = 18x

Solving for variable 'x'.

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

Add '-18x' to each side of the equation.
-12 + 3x + -18x = 18x + -18x

Combine like terms: 3x + -18x = -15x
-12 + -15x = 18x + -18x

Combine like terms: 18x + -18x = 0
-12 + -15x = 0

Add '12' to each side of the equation.
-12 + 12 + -15x = 0 + 12

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

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

Divide each side by '-15'.
x = -0.8

Simplifying
x = -0.8

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