-2(8r-1)-6=-4r+20

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Solution for -2(8r-1)-6=-4r+20 equation:


Simplifying
-2(8r + -1) + -6 = -4r + 20

Reorder the terms:
-2(-1 + 8r) + -6 = -4r + 20
(-1 * -2 + 8r * -2) + -6 = -4r + 20
(2 + -16r) + -6 = -4r + 20

Reorder the terms:
2 + -6 + -16r = -4r + 20

Combine like terms: 2 + -6 = -4
-4 + -16r = -4r + 20

Reorder the terms:
-4 + -16r = 20 + -4r

Solving
-4 + -16r = 20 + -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
-4 + -16r + 4r = 20 + -4r + 4r

Combine like terms: -16r + 4r = -12r
-4 + -12r = 20 + -4r + 4r

Combine like terms: -4r + 4r = 0
-4 + -12r = 20 + 0
-4 + -12r = 20

Add '4' to each side of the equation.
-4 + 4 + -12r = 20 + 4

Combine like terms: -4 + 4 = 0
0 + -12r = 20 + 4
-12r = 20 + 4

Combine like terms: 20 + 4 = 24
-12r = 24

Divide each side by '-12'.
r = -2

Simplifying
r = -2

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