(3v-5)(7-v)=0

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Solution for (3v-5)(7-v)=0 equation:


Simplifying
(3v + -5)(7 + -1v) = 0

Reorder the terms:
(-5 + 3v)(7 + -1v) = 0

Multiply (-5 + 3v) * (7 + -1v)
(-5(7 + -1v) + 3v * (7 + -1v)) = 0
((7 * -5 + -1v * -5) + 3v * (7 + -1v)) = 0
((-35 + 5v) + 3v * (7 + -1v)) = 0
(-35 + 5v + (7 * 3v + -1v * 3v)) = 0
(-35 + 5v + (21v + -3v2)) = 0

Combine like terms: 5v + 21v = 26v
(-35 + 26v + -3v2) = 0

Solving
-35 + 26v + -3v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-7 + v)(5 + -3v) = 0

Subproblem 1

Set the factor '(-7 + v)' equal to zero and attempt to solve: Simplifying -7 + v = 0 Solving -7 + v = 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 + v = 0 + 7 Combine like terms: -7 + 7 = 0 0 + v = 0 + 7 v = 0 + 7 Combine like terms: 0 + 7 = 7 v = 7 Simplifying v = 7

Subproblem 2

Set the factor '(5 + -3v)' equal to zero and attempt to solve: Simplifying 5 + -3v = 0 Solving 5 + -3v = 0 Move all terms containing v to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -3v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -3v = 0 + -5 -3v = 0 + -5 Combine like terms: 0 + -5 = -5 -3v = -5 Divide each side by '-3'. v = 1.666666667 Simplifying v = 1.666666667

Solution

v = {7, 1.666666667}

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