3(4r+1)-12=

Solution for 3(4r+1)-12= equation:

Simplifying
3(4r + 1) + -12 = 0

Reorder the terms:
3(1 + 4r) + -12 = 0
(1 * 3 + 4r * 3) + -12 = 0
(3 + 12r) + -12 = 0

Reorder the terms:
3 + -12 + 12r = 0

Combine like terms: 3 + -12 = -9
-9 + 12r = 0

Solving
-9 + 12r = 0

Solving for variable 'r'.

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

Add '9' to each side of the equation.
-9 + 9 + 12r = 0 + 9

Combine like terms: -9 + 9 = 0
0 + 12r = 0 + 9
12r = 0 + 9

Combine like terms: 0 + 9 = 9
12r = 9

Divide each side by '12'.
r = 0.75

Simplifying
r = 0.75