9t-5r+(3r+6t)=

Solution for 9t-5r+(3r+6t)= equation:

Simplifying
9t + -5r + (3r + 6t) = 0

Remove parenthesis around (3r + 6t)
9t + -5r + 3r + 6t = 0

Reorder the terms:
-5r + 3r + 9t + 6t = 0

Combine like terms: -5r + 3r = -2r
-2r + 9t + 6t = 0

Combine like terms: 9t + 6t = 15t
-2r + 15t = 0

Solving
-2r + 15t = 0

Solving for variable 'r'.

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

Add '-15t' to each side of the equation.
-2r + 15t + -15t = 0 + -15t

Combine like terms: 15t + -15t = 0
-2r + 0 = 0 + -15t
-2r = 0 + -15t
Remove the zero:
-2r = -15t

Divide each side by '-2'.
r = 7.5t

Simplifying
r = 7.5t