8=8r-4(v+8)

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Solution for 8=8r-4(v+8) equation:


Simplifying
8 = 8r + -4(v + 8)

Reorder the terms:
8 = 8r + -4(8 + v)
8 = 8r + (8 * -4 + v * -4)
8 = 8r + (-32 + -4v)

Reorder the terms:
8 = -32 + 8r + -4v

Solving
8 = -32 + 8r + -4v

Solving for variable 'r'.

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

Add '-8r' to each side of the equation.
8 + -8r = -32 + 8r + -8r + -4v

Combine like terms: 8r + -8r = 0
8 + -8r = -32 + 0 + -4v
8 + -8r = -32 + -4v

Add '-8' to each side of the equation.
8 + -8 + -8r = -32 + -8 + -4v

Combine like terms: 8 + -8 = 0
0 + -8r = -32 + -8 + -4v
-8r = -32 + -8 + -4v

Combine like terms: -32 + -8 = -40
-8r = -40 + -4v

Divide each side by '-8'.
r = 5 + 0.5v

Simplifying
r = 5 + 0.5v

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