-16*t^2+85=0

Solution for -16*t^2+85=0 equation:

Simplifying
-16t2 + 85 = 0

Reorder the terms:
85 + -16t2 = 0

Solving
85 + -16t2 = 0

Solving for variable 't'.

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

Add '-85' to each side of the equation.
85 + -85 + -16t2 = 0 + -85

Combine like terms: 85 + -85 = 0
0 + -16t2 = 0 + -85
-16t2 = 0 + -85

Combine like terms: 0 + -85 = -85
-16t2 = -85

Divide each side by '-16'.
t2 = 5.3125

Simplifying
t2 = 5.3125

Take the square root of each side:
t = {-2.304886114, 2.304886114}