-3x(1x+4x-x)=3x(4x)

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Solution for -3x(1x+4x-x)=3x(4x) equation: 


Simplifying
-3x(1x + 4x + -1x) = 3x(4x)

Combine like terms: 1x + 4x = 5x
-3x(5x + -1x) = 3x(4x)

Combine like terms: 5x + -1x = 4x
-3x(4x) = 3x(4x)

Remove parenthesis around (4x)
-3x * 4x = 3x(4x)

Reorder the terms for easier multiplication:
-3 * 4x * x = 3x(4x)

Multiply -3 * 4
-12x * x = 3x(4x)

Multiply x * x
-12x2 = 3x(4x)

Remove parenthesis around (4x)
-12x2 = 3x * 4x

Reorder the terms for easier multiplication:
-12x2 = 3 * 4x * x

Multiply 3 * 4
-12x2 = 12x * x

Multiply x * x
-12x2 = 12x2

Solving
-12x2 = 12x2

Solving for variable 'x'.

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

Add '-12x2' to each side of the equation.
-12x2 + -12x2 = 12x2 + -12x2

Combine like terms: -12x2 + -12x2 = -24x2
-24x2 = 12x2 + -12x2

Combine like terms: 12x2 + -12x2 = 0
-24x2 = 0

Divide each side by '-24'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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