12-6(2r-12)=-9(r-12)-6

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Solution for 12-6(2r-12)=-9(r-12)-6 equation:


Simplifying
12 + -6(2r + -12) = -9(r + -12) + -6

Reorder the terms:
12 + -6(-12 + 2r) = -9(r + -12) + -6
12 + (-12 * -6 + 2r * -6) = -9(r + -12) + -6
12 + (72 + -12r) = -9(r + -12) + -6

Combine like terms: 12 + 72 = 84
84 + -12r = -9(r + -12) + -6

Reorder the terms:
84 + -12r = -9(-12 + r) + -6
84 + -12r = (-12 * -9 + r * -9) + -6
84 + -12r = (108 + -9r) + -6

Reorder the terms:
84 + -12r = 108 + -6 + -9r

Combine like terms: 108 + -6 = 102
84 + -12r = 102 + -9r

Solving
84 + -12r = 102 + -9r

Solving for variable 'r'.

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

Add '9r' to each side of the equation.
84 + -12r + 9r = 102 + -9r + 9r

Combine like terms: -12r + 9r = -3r
84 + -3r = 102 + -9r + 9r

Combine like terms: -9r + 9r = 0
84 + -3r = 102 + 0
84 + -3r = 102

Add '-84' to each side of the equation.
84 + -84 + -3r = 102 + -84

Combine like terms: 84 + -84 = 0
0 + -3r = 102 + -84
-3r = 102 + -84

Combine like terms: 102 + -84 = 18
-3r = 18

Divide each side by '-3'.
r = -6

Simplifying
r = -6

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