-2(1-6r)-4(r+4)=-50

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Solution for -2(1-6r)-4(r+4)=-50 equation: 


Simplifying
-2(1 + -6r) + -4(r + 4) = -50
(1 * -2 + -6r * -2) + -4(r + 4) = -50
(-2 + 12r) + -4(r + 4) = -50

Reorder the terms:
-2 + 12r + -4(4 + r) = -50
-2 + 12r + (4 * -4 + r * -4) = -50
-2 + 12r + (-16 + -4r) = -50

Reorder the terms:
-2 + -16 + 12r + -4r = -50

Combine like terms: -2 + -16 = -18
-18 + 12r + -4r = -50

Combine like terms: 12r + -4r = 8r
-18 + 8r = -50

Solving
-18 + 8r = -50

Solving for variable 'r'.

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

Add '18' to each side of the equation.
-18 + 18 + 8r = -50 + 18

Combine like terms: -18 + 18 = 0
0 + 8r = -50 + 18
8r = -50 + 18

Combine like terms: -50 + 18 = -32
8r = -32

Divide each side by '8'.
r = -4

Simplifying
r = -4

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