-4+4(-3r+9)=

Solution for -4+4(-3r+9)= equation:

Simplifying
-4 + 4(-3r + 9) = 0

Reorder the terms:
-4 + 4(9 + -3r) = 0
-4 + (9 * 4 + -3r * 4) = 0
-4 + (36 + -12r) = 0

Combine like terms: -4 + 36 = 32
32 + -12r = 0

Solving
32 + -12r = 0

Solving for variable 'r'.

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

Add '-32' to each side of the equation.
32 + -32 + -12r = 0 + -32

Combine like terms: 32 + -32 = 0
0 + -12r = 0 + -32
-12r = 0 + -32

Combine like terms: 0 + -32 = -32
-12r = -32

Divide each side by '-12'.
r = 2.666666667

Simplifying
r = 2.666666667