(6x-7)(5x+5)=0

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Solution for (6x-7)(5x+5)=0 equation: 


Simplifying
(6x + -7)(5x + 5) = 0

Reorder the terms:
(-7 + 6x)(5x + 5) = 0

Reorder the terms:
(-7 + 6x)(5 + 5x) = 0

Multiply (-7 + 6x) * (5 + 5x)
(-7(5 + 5x) + 6x * (5 + 5x)) = 0
((5 * -7 + 5x * -7) + 6x * (5 + 5x)) = 0
((-35 + -35x) + 6x * (5 + 5x)) = 0
(-35 + -35x + (5 * 6x + 5x * 6x)) = 0
(-35 + -35x + (30x + 30x2)) = 0

Combine like terms: -35x + 30x = -5x
(-35 + -5x + 30x2) = 0

Solving
-35 + -5x + 30x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '5'.
5(-7 + -1x + 6x2) = 0

Factor a trinomial.
5((-1 + -1x)(7 + -6x)) = 0

Ignore the factor 5.

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

Simplifying
-1 + -1x = 0

Solving
-1 + -1x = 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 + -1x = 0 + 1

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

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

Divide each side by '-1'.
x = -1

Simplifying
x = -1

Subproblem 2
Set the factor '(7 + -6x)' equal to zero and attempt to solve:

Simplifying
7 + -6x = 0

Solving
7 + -6x = 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 + -6x = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -6x = 0 + -7
-6x = 0 + -7

Combine like terms: 0 + -7 = -7
-6x = -7

Divide each side by '-6'.
x = 1.166666667

Simplifying
x = 1.166666667
Solution
x = {-1, 1.166666667}

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