(7x)(-3x)=

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Solution for (7x)(-3x)= equation: 


Simplifying
(7x)(-3x) = 0

Remove parenthesis around (7x)
7x(-3x) = 0

Remove parenthesis around (-3x)
7x * -3x = 0

Reorder the terms for easier multiplication:
7 * -3x * x = 0

Multiply 7 * -3
-21x * x = 0

Multiply x * x
-21x2 = 0

Solving
-21x2 = 0

Solving for variable 'x'.

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

Divide each side by '-21'.
x2 = 0

Simplifying
x2 = 0

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

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