21v^2-7=46v

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Solution for 21v^2-7=46v equation:


Simplifying
21v2 + -7 = 46v

Reorder the terms:
-7 + 21v2 = 46v

Solving
-7 + 21v2 = 46v

Solving for variable 'v'.

Reorder the terms:
-7 + -46v + 21v2 = 46v + -46v

Combine like terms: 46v + -46v = 0
-7 + -46v + 21v2 = 0

Factor a trinomial.
(-1 + -7v)(7 + -3v) = 0

Subproblem 1

Set the factor '(-1 + -7v)' equal to zero and attempt to solve: Simplifying -1 + -7v = 0 Solving -1 + -7v = 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 + -7v = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -7v = 0 + 1 -7v = 0 + 1 Combine like terms: 0 + 1 = 1 -7v = 1 Divide each side by '-7'. v = -0.1428571429 Simplifying v = -0.1428571429

Subproblem 2

Set the factor '(7 + -3v)' equal to zero and attempt to solve: Simplifying 7 + -3v = 0 Solving 7 + -3v = 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 + -3v = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -3v = 0 + -7 -3v = 0 + -7 Combine like terms: 0 + -7 = -7 -3v = -7 Divide each side by '-3'. v = 2.333333333 Simplifying v = 2.333333333

Solution

v = {-0.1428571429, 2.333333333}

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