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Simplifying
4v2 + 4 = 84
Reorder the terms:
4 + 4v2 = 84
Solving
4 + 4v2 = 84
Solving for variable 'v'.
Move all terms containing v to the left, all other terms to the right.
Add '-4' to each side of the equation.
4 + -4 + 4v2 = 84 + -4
Combine like terms: 4 + -4 = 0
0 + 4v2 = 84 + -4
4v2 = 84 + -4
Combine like terms: 84 + -4 = 80
4v2 = 80
Divide each side by '4'.
v2 = 20
Simplifying
v2 = 20
Take the square root of each side:
v = {-4.472135955, 4.472135955}
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