36x^2+39r-105=0

Solution for 36x^2+39r-105=0 equation:

Simplifying
36x2 + 39r + -105 = 0

Reorder the terms:
-105 + 39r + 36x2 = 0

Solving
-105 + 39r + 36x2 = 0

Solving for variable 'r'.

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

Add '105' to each side of the equation.
-105 + 39r + 105 + 36x2 = 0 + 105

Reorder the terms:
-105 + 105 + 39r + 36x2 = 0 + 105

Combine like terms: -105 + 105 = 0
0 + 39r + 36x2 = 0 + 105
39r + 36x2 = 0 + 105

Combine like terms: 0 + 105 = 105
39r + 36x2 = 105

Add '-36x2' to each side of the equation.
39r + 36x2 + -36x2 = 105 + -36x2

Combine like terms: 36x2 + -36x2 = 0
39r + 0 = 105 + -36x2
39r = 105 + -36x2

Divide each side by '39'.
r = 2.692307692 + -0.9230769231x2

Simplifying
r = 2.692307692 + -0.9230769231x2