(-3x)(x)=-x(-x)

Solution for (-3x)(x)=-x(-x) equation:

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

Remove parenthesis around (-3x)
-3x(x) = -1x(-1x)

Multiply x * x
-3x2 = -1x(-1x)

Remove parenthesis around (-1x)
-3x2 = -1x * -1x

Reorder the terms for easier multiplication:
-3x2 = -1 * -1x * x

Multiply -1 * -1
-3x2 = 1x * x

Multiply x * x
-3x2 = 1x2

Solving
-3x2 = 1x2

Solving for variable 'x'.

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

Add '-1x2' to each side of the equation.
-3x2 + -1x2 = 1x2 + -1x2

Combine like terms: -3x2 + -1x2 = -4x2
-4x2 = 1x2 + -1x2

Combine like terms: 1x2 + -1x2 = 0
-4x2 = 0

Divide each side by '-4'.
x2 = 0

Simplifying
x2 = 0

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