(9v-7)(8v-1)=0

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Solution for (9v-7)(8v-1)=0 equation: 


Simplifying
(9v + -7)(8v + -1) = 0

Reorder the terms:
(-7 + 9v)(8v + -1) = 0

Reorder the terms:
(-7 + 9v)(-1 + 8v) = 0

Multiply (-7 + 9v) * (-1 + 8v)
(-7(-1 + 8v) + 9v * (-1 + 8v)) = 0
((-1 * -7 + 8v * -7) + 9v * (-1 + 8v)) = 0
((7 + -56v) + 9v * (-1 + 8v)) = 0
(7 + -56v + (-1 * 9v + 8v * 9v)) = 0
(7 + -56v + (-9v + 72v2)) = 0

Combine like terms: -56v + -9v = -65v
(7 + -65v + 72v2) = 0

Solving
7 + -65v + 72v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(1 + -8v)(7 + -9v) = 0


Subproblem 1
Set the factor '(1 + -8v)' equal to zero and attempt to solve:

Simplifying
1 + -8v = 0

Solving
1 + -8v = 0

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

Add '-1' to each side of the equation.
1 + -1 + -8v = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -8v = 0 + -1
-8v = 0 + -1

Combine like terms: 0 + -1 = -1
-8v = -1

Divide each side by '-8'.
v = 0.125

Simplifying
v = 0.125

Subproblem 2
Set the factor '(7 + -9v)' equal to zero and attempt to solve:

Simplifying
7 + -9v = 0

Solving
7 + -9v = 0

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

Add '-7' to each side of the equation.
7 + -7 + -9v = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -9v = 0 + -7
-9v = 0 + -7

Combine like terms: 0 + -7 = -7
-9v = -7

Divide each side by '-9'.
v = 0.7777777778

Simplifying
v = 0.7777777778
Solution
v = {0.125, 0.7777777778}

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