216=-6(6r-6)

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Solution for 216=-6(6r-6) equation:


Simplifying
216 = -6(6r + -6)

Reorder the terms:
216 = -6(-6 + 6r)
216 = (-6 * -6 + 6r * -6)
216 = (36 + -36r)

Solving
216 = 36 + -36r

Solving for variable 'r'.

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

Add '36r' to each side of the equation.
216 + 36r = 36 + -36r + 36r

Combine like terms: -36r + 36r = 0
216 + 36r = 36 + 0
216 + 36r = 36

Add '-216' to each side of the equation.
216 + -216 + 36r = 36 + -216

Combine like terms: 216 + -216 = 0
0 + 36r = 36 + -216
36r = 36 + -216

Combine like terms: 36 + -216 = -180
36r = -180

Divide each side by '36'.
r = -5

Simplifying
r = -5

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