3v^2-84=-9

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Solution for 3v^2-84=-9 equation:


Simplifying
3v2 + -84 = -9

Reorder the terms:
-84 + 3v2 = -9

Solving
-84 + 3v2 = -9

Solving for variable 'v'.

Move all terms containing v to the left, all other terms to the right.

Add '84' to each side of the equation.
-84 + 84 + 3v2 = -9 + 84

Combine like terms: -84 + 84 = 0
0 + 3v2 = -9 + 84
3v2 = -9 + 84

Combine like terms: -9 + 84 = 75
3v2 = 75

Divide each side by '3'.
v2 = 25

Simplifying
v2 = 25

Take the square root of each side:
v = {-5, 5}

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