(-7+4x)(1+3x)=0

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Solution for (-7+4x)(1+3x)=0 equation: 


Simplifying
(-7 + 4x)(1 + 3x) = 0

Multiply (-7 + 4x) * (1 + 3x)
(-7(1 + 3x) + 4x * (1 + 3x)) = 0
((1 * -7 + 3x * -7) + 4x * (1 + 3x)) = 0
((-7 + -21x) + 4x * (1 + 3x)) = 0
(-7 + -21x + (1 * 4x + 3x * 4x)) = 0
(-7 + -21x + (4x + 12x2)) = 0

Combine like terms: -21x + 4x = -17x
(-7 + -17x + 12x2) = 0

Solving
-7 + -17x + 12x2 = 0

Solving for variable 'x'.

Factor a trinomial.
(-1 + -3x)(7 + -4x) = 0


Subproblem 1
Set the factor '(-1 + -3x)' equal to zero and attempt to solve:

Simplifying
-1 + -3x = 0

Solving
-1 + -3x = 0

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

Add '1' to each side of the equation.
-1 + 1 + -3x = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -3x = 0 + 1
-3x = 0 + 1

Combine like terms: 0 + 1 = 1
-3x = 1

Divide each side by '-3'.
x = -0.3333333333

Simplifying
x = -0.3333333333

Subproblem 2
Set the factor '(7 + -4x)' equal to zero and attempt to solve:

Simplifying
7 + -4x = 0

Solving
7 + -4x = 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 + -4x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -4x = 0 + -7
-4x = 0 + -7

Combine like terms: 0 + -7 = -7
-4x = -7

Divide each side by '-4'.
x = 1.75

Simplifying
x = 1.75
Solution
x = {-0.3333333333, 1.75}

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