20v^2-39+18=0

Solution for 20v^2-39+18=0 equation:

Simplifying
20v2 + -39 + 18 = 0

Reorder the terms:
-39 + 18 + 20v2 = 0

Combine like terms: -39 + 18 = -21
-21 + 20v2 = 0

Solving
-21 + 20v2 = 0

Solving for variable 'v'.

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

Add '21' to each side of the equation.
-21 + 21 + 20v2 = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 20v2 = 0 + 21
20v2 = 0 + 21

Combine like terms: 0 + 21 = 21
20v2 = 21

Divide each side by '20'.
v2 = 1.05

Simplifying
v2 = 1.05

Take the square root of each side:
v = {-1.024695077, 1.024695077}