7v^2-5=-2v

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Solution for 7v^2-5=-2v equation:


Simplifying
7v2 + -5 = -2v

Reorder the terms:
-5 + 7v2 = -2v

Solving
-5 + 7v2 = -2v

Solving for variable 'v'.

Reorder the terms:
-5 + 2v + 7v2 = -2v + 2v

Combine like terms: -2v + 2v = 0
-5 + 2v + 7v2 = 0

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

Subproblem 1

Set the factor '(-1 + -1v)' equal to zero and attempt to solve: Simplifying -1 + -1v = 0 Solving -1 + -1v = 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 + -1v = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1v = 0 + 1 -1v = 0 + 1 Combine like terms: 0 + 1 = 1 -1v = 1 Divide each side by '-1'. v = -1 Simplifying v = -1

Subproblem 2

Set the factor '(5 + -7v)' equal to zero and attempt to solve: Simplifying 5 + -7v = 0 Solving 5 + -7v = 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 + -7v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -7v = 0 + -5 -7v = 0 + -5 Combine like terms: 0 + -5 = -5 -7v = -5 Divide each side by '-7'. v = 0.7142857143 Simplifying v = 0.7142857143

Solution

v = {-1, 0.7142857143}

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