-86=4+3(-6+3r)

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Solution for -86=4+3(-6+3r) equation: 


Simplifying
-86 = 4 + 3(-6 + 3r)
-86 = 4 + (-6 * 3 + 3r * 3)
-86 = 4 + (-18 + 9r)

Combine like terms: 4 + -18 = -14
-86 = -14 + 9r

Solving
-86 = -14 + 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.
-86 + -9r = -14 + 9r + -9r

Combine like terms: 9r + -9r = 0
-86 + -9r = -14 + 0
-86 + -9r = -14

Add '86' to each side of the equation.
-86 + 86 + -9r = -14 + 86

Combine like terms: -86 + 86 = 0
0 + -9r = -14 + 86
-9r = -14 + 86

Combine like terms: -14 + 86 = 72
-9r = 72

Divide each side by '-9'.
r = -8

Simplifying
r = -8

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