(9+v)(5v+7)=0

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Solution for (9+v)(5v+7)=0 equation: 


Simplifying
(9 + v)(5v + 7) = 0

Reorder the terms:
(9 + v)(7 + 5v) = 0

Multiply (9 + v) * (7 + 5v)
(9(7 + 5v) + v(7 + 5v)) = 0
((7 * 9 + 5v * 9) + v(7 + 5v)) = 0
((63 + 45v) + v(7 + 5v)) = 0
(63 + 45v + (7 * v + 5v * v)) = 0
(63 + 45v + (7v + 5v2)) = 0

Combine like terms: 45v + 7v = 52v
(63 + 52v + 5v2) = 0

Solving
63 + 52v + 5v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(9 + v)(7 + 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 '(7 + 5v)' equal to zero and attempt to solve:

Simplifying
7 + 5v = 0

Solving
7 + 5v = 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 + 5v = 0 + -7

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

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

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

Simplifying
v = -1.4
Solution
v = {-9, -1.4}

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