.85=t^2

Solution for .85=t^2 equation:

Simplifying
0.85 = t2

Solving
0.85 = t2

Solving for variable 't'.

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

Add '-1t2' to each side of the equation.
0.85 + -1t2 = t2 + -1t2

Combine like terms: t2 + -1t2 = 0
0.85 + -1t2 = 0

Add '-0.85' to each side of the equation.
0.85 + -0.85 + -1t2 = 0 + -0.85

Combine like terms: 0.85 + -0.85 = 0.00
0.00 + -1t2 = 0 + -0.85
-1t2 = 0 + -0.85

Combine like terms: 0 + -0.85 = -0.85
-1t2 = -0.85

Divide each side by '-1'.
t2 = 0.85

Simplifying
t2 = 0.85

Take the square root of each side:
t = {-0.921954446, 0.921954446}