-3(5r+6)=

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

Simplifying
-3(5r + 6) = 0

Reorder the terms:
-3(6 + 5r) = 0
(6 * -3 + 5r * -3) = 0
(-18 + -15r) = 0

Solving
-18 + -15r = 0

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + -15r = 0 + 18

Combine like terms: -18 + 18 = 0
0 + -15r = 0 + 18
-15r = 0 + 18

Combine like terms: 0 + 18 = 18
-15r = 18

Divide each side by '-15'.
r = -1.2

Simplifying
r = -1.2