2(-8r-7)+4r=-86

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Solution for 2(-8r-7)+4r=-86 equation: 


Simplifying
2(-8r + -7) + 4r = -86

Reorder the terms:
2(-7 + -8r) + 4r = -86
(-7 * 2 + -8r * 2) + 4r = -86
(-14 + -16r) + 4r = -86

Combine like terms: -16r + 4r = -12r
-14 + -12r = -86

Solving
-14 + -12r = -86

Solving for variable 'r'.

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

Add '14' to each side of the equation.
-14 + 14 + -12r = -86 + 14

Combine like terms: -14 + 14 = 0
0 + -12r = -86 + 14
-12r = -86 + 14

Combine like terms: -86 + 14 = -72
-12r = -72

Divide each side by '-12'.
r = 6

Simplifying
r = 6

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