(-4+r)*-3=3

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

Simplifying
(-4 + r) * -3 = 3

Reorder the terms for easier multiplication:
-3(-4 + r) = 3
(-4 * -3 + r * -3) = 3
(12 + -3r) = 3

Solving
12 + -3r = 3

Solving for variable 'r'.

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

Add '-12' to each side of the equation.
12 + -12 + -3r = 3 + -12

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

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

Divide each side by '-3'.
r = 3

Simplifying
r = 3