f-r+z=

Solution for f-r+z= equation:

Simplifying
f + -1r + z = 0

Solving
f + -1r + z = 0

Solving for variable 'f'.

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

Add 'r' to each side of the equation.
f + -1r + r + z = 0 + r

Combine like terms: -1r + r = 0
f + 0 + z = 0 + r
f + z = 0 + r
Remove the zero:
f + z = r

Add '-1z' to each side of the equation.
f + z + -1z = r + -1z

Combine like terms: z + -1z = 0
f + 0 = r + -1z
f = r + -1z

Simplifying
f = r + -1z