-15r+3(2s-4r)=

Solution for -15r+3(2s-4r)= equation:

Simplifying
-15r + 3(2s + -4r) = 0

Reorder the terms:
-15r + 3(-4r + 2s) = 0
-15r + (-4r * 3 + 2s * 3) = 0
-15r + (-12r + 6s) = 0

Combine like terms: -15r + -12r = -27r
-27r + 6s = 0

Solving
-27r + 6s = 0

Solving for variable 'r'.

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

Add '-6s' to each side of the equation.
-27r + 6s + -6s = 0 + -6s

Combine like terms: 6s + -6s = 0
-27r + 0 = 0 + -6s
-27r = 0 + -6s
Remove the zero:
-27r = -6s

Divide each side by '-27'.
r = 0.2222222222s

Simplifying
r = 0.2222222222s