4r-1=9whatisr

Solution for 4r-1=9whatisr equation:

Simplifying
4r + -1 = 9whatisr

Reorder the terms:
-1 + 4r = 9whatisr

Solving
-1 + 4r = 9ahirstw

Solving for variable 'r'.

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

Add '-9ahirstw' to each side of the equation.
-1 + -9ahirstw + 4r = 9ahirstw + -9ahirstw

Combine like terms: 9ahirstw + -9ahirstw = 0
-1 + -9ahirstw + 4r = 0

Add '1' to each side of the equation.
-1 + -9ahirstw + 1 + 4r = 0 + 1

Reorder the terms:
-1 + 1 + -9ahirstw + 4r = 0 + 1

Combine like terms: -1 + 1 = 0
0 + -9ahirstw + 4r = 0 + 1
-9ahirstw + 4r = 0 + 1

Combine like terms: 0 + 1 = 1
-9ahirstw + 4r = 1

Reorder the terms:
-1 + -9ahirstw + 4r = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -9ahirstw + 4r = 0

The solution to this equation could not be determined.