.25=780*n

Solution for .25=780*n equation:

Simplifying
0.25 = 780n

Solving
0.25 = 780n

Solving for variable 'n'.

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

Add '-780n' to each side of the equation.
0.25 + -780n = 780n + -780n

Combine like terms: 780n + -780n = 0
0.25 + -780n = 0

Add '-0.25' to each side of the equation.
0.25 + -0.25 + -780n = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + -780n = 0 + -0.25
-780n = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
-780n = -0.25

Divide each side by '-780'.
n = 0.0003205128205

Simplifying
n = 0.0003205128205