(9-v)*(5v-8)=0

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Solution for (9-v)*(5v-8)=0 equation: 


Simplifying
(9 + -1v)(5v + -8) = 0

Reorder the terms:
(9 + -1v)(-8 + 5v) = 0

Multiply (9 + -1v) * (-8 + 5v)
(9(-8 + 5v) + -1v * (-8 + 5v)) = 0
((-8 * 9 + 5v * 9) + -1v * (-8 + 5v)) = 0
((-72 + 45v) + -1v * (-8 + 5v)) = 0
(-72 + 45v + (-8 * -1v + 5v * -1v)) = 0
(-72 + 45v + (8v + -5v2)) = 0

Combine like terms: 45v + 8v = 53v
(-72 + 53v + -5v2) = 0

Solving
-72 + 53v + -5v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-9 + v)(8 + -5v) = 0


Subproblem 1
Set the factor '(-9 + v)' equal to zero and attempt to solve:

Simplifying
-9 + v = 0

Solving
-9 + v = 0

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

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

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

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

Simplifying
v = 9

Subproblem 2
Set the factor '(8 + -5v)' equal to zero and attempt to solve:

Simplifying
8 + -5v = 0

Solving
8 + -5v = 0

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

Add '-8' to each side of the equation.
8 + -8 + -5v = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -5v = 0 + -8
-5v = 0 + -8

Combine like terms: 0 + -8 = -8
-5v = -8

Divide each side by '-5'.
v = 1.6

Simplifying
v = 1.6
Solution
v = {9, 1.6}

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