-15=-3(4r-3)

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


Simplifying
-15 = -3(4r + -3)

Reorder the terms:
-15 = -3(-3 + 4r)
-15 = (-3 * -3 + 4r * -3)
-15 = (9 + -12r)

Solving
-15 = 9 + -12r

Solving for variable 'r'.

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

Add '12r' to each side of the equation.
-15 + 12r = 9 + -12r + 12r

Combine like terms: -12r + 12r = 0
-15 + 12r = 9 + 0
-15 + 12r = 9

Add '15' to each side of the equation.
-15 + 15 + 12r = 9 + 15

Combine like terms: -15 + 15 = 0
0 + 12r = 9 + 15
12r = 9 + 15

Combine like terms: 9 + 15 = 24
12r = 24

Divide each side by '12'.
r = 2

Simplifying
r = 2

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