v^2-4v-19=-7

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Solution for v^2-4v-19=-7 equation:


Simplifying
v2 + -4v + -19 = -7

Reorder the terms:
-19 + -4v + v2 = -7

Solving
-19 + -4v + v2 = -7

Solving for variable 'v'.

Reorder the terms:
-19 + 7 + -4v + v2 = -7 + 7

Combine like terms: -19 + 7 = -12
-12 + -4v + v2 = -7 + 7

Combine like terms: -7 + 7 = 0
-12 + -4v + v2 = 0

Factor a trinomial.
(-2 + -1v)(6 + -1v) = 0

Subproblem 1

Set the factor '(-2 + -1v)' equal to zero and attempt to solve: Simplifying -2 + -1v = 0 Solving -2 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1v = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1v = 0 + 2 -1v = 0 + 2 Combine like terms: 0 + 2 = 2 -1v = 2 Divide each side by '-1'. v = -2 Simplifying v = -2

Subproblem 2

Set the factor '(6 + -1v)' equal to zero and attempt to solve: Simplifying 6 + -1v = 0 Solving 6 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1v = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1v = 0 + -6 -1v = 0 + -6 Combine like terms: 0 + -6 = -6 -1v = -6 Divide each side by '-1'. v = 6 Simplifying v = 6

Solution

v = {-2, 6}

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