2.25=cosx

Solution for 2.25=cosx equation:

Simplifying
2.25 = cosx

Solving
2.25 = cosx

Solving for variable 'c'.

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

Add '-1cosx' to each side of the equation.
2.25 + -1cosx = cosx + -1cosx

Combine like terms: cosx + -1cosx = 0
2.25 + -1cosx = 0

Add '-2.25' to each side of the equation.
2.25 + -2.25 + -1cosx = 0 + -2.25

Combine like terms: 2.25 + -2.25 = 0.00
0.00 + -1cosx = 0 + -2.25
-1cosx = 0 + -2.25

Combine like terms: 0 + -2.25 = -2.25
-1cosx = -2.25

Divide each side by '-1osx'.
c = 2.25o-1s-1x-1

Simplifying
c = 2.25o-1s-1x-1