15-5r=-3(6-2r)

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Solution for 15-5r=-3(6-2r) equation: 


Simplifying
15 + -5r = -3(6 + -2r)
15 + -5r = (6 * -3 + -2r * -3)
15 + -5r = (-18 + 6r)

Solving
15 + -5r = -18 + 6r

Solving for variable 'r'.

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

Add '-6r' to each side of the equation.
15 + -5r + -6r = -18 + 6r + -6r

Combine like terms: -5r + -6r = -11r
15 + -11r = -18 + 6r + -6r

Combine like terms: 6r + -6r = 0
15 + -11r = -18 + 0
15 + -11r = -18

Add '-15' to each side of the equation.
15 + -15 + -11r = -18 + -15

Combine like terms: 15 + -15 = 0
0 + -11r = -18 + -15
-11r = -18 + -15

Combine like terms: -18 + -15 = -33
-11r = -33

Divide each side by '-11'.
r = 3

Simplifying
r = 3

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