(3x-12x)(5x-7)=0

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Solution for (3x-12x)(5x-7)=0 equation: 


Simplifying
(3x + -12x)(5x + -7) = 0

Combine like terms: 3x + -12x = -9x
(-9x)(5x + -7) = 0

Remove parenthesis around (-9x)
-9x(5x + -7) = 0

Reorder the terms:
-9x(-7 + 5x) = 0
(-7 * -9x + 5x * -9x) = 0
(63x + -45x2) = 0

Solving
63x + -45x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '9x'.
9x(7 + -5x) = 0

Ignore the factor 9.

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 + -5x)' equal to zero and attempt to solve:

Simplifying
7 + -5x = 0

Solving
7 + -5x = 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 + -5x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -5x = 0 + -7
-5x = 0 + -7

Combine like terms: 0 + -7 = -7
-5x = -7

Divide each side by '-5'.
x = 1.4

Simplifying
x = 1.4
Solution
x = {0, 1.4}

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