(-3X)(-4x)=-7x

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Solution for (-3X)(-4x)=-7x equation: 


Simplifying
(-3X)(-4x) = -7x

Remove parenthesis around (-3X)
-3X(-4x) = -7x

Remove parenthesis around (-4x)
-3X * -4x = -7x

Reorder the terms for easier multiplication:
-3 * -4X * x = -7x

Multiply -3 * -4
12X * x = -7x

Multiply X * x
12xX = -7x

Solving
12xX = -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
7x + 12xX = -7x + 7x

Combine like terms: -7x + 7x = 0
7x + 12xX = 0

Factor out the Greatest Common Factor (GCF), 'x'.
x(7 + 12X) = 0


Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:

Simplifying
x = 0

Solving
x = 0

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

Simplifying
x = 0

Subproblem 2
Set the factor '(7 + 12X)' equal to zero and attempt to solve:

Simplifying
7 + 12X = 0

Solving
7 + 12X = 0

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

Add '-7' to each side of the equation.
7 + -7 + 12X = 0 + -7

Combine like terms: 7 + -7 = 0
0 + 12X = 0 + -7
12X = 0 + -7

Combine like terms: 0 + -7 = -7
12X = -7

Add '-12X' to each side of the equation.
12X + -12X = -7 + -12X

Combine like terms: 12X + -12X = 0
0 = -7 + -12X

Simplifying
0 = -7 + -12X

The solution to this equation could not be determined.

This subproblem is being ignored because a solution could not be determined.
Solution
x = {0}

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