6(3r-6)-6r=-87

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Solution for 6(3r-6)-6r=-87 equation:


Simplifying
6(3r + -6) + -6r = -87

Reorder the terms:
6(-6 + 3r) + -6r = -87
(-6 * 6 + 3r * 6) + -6r = -87
(-36 + 18r) + -6r = -87

Combine like terms: 18r + -6r = 12r
-36 + 12r = -87

Solving
-36 + 12r = -87

Solving for variable 'r'.

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

Add '36' to each side of the equation.
-36 + 36 + 12r = -87 + 36

Combine like terms: -36 + 36 = 0
0 + 12r = -87 + 36
12r = -87 + 36

Combine like terms: -87 + 36 = -51
12r = -51

Divide each side by '12'.
r = -4.25

Simplifying
r = -4.25

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