r+12+3v=5+9r-9

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Solution for r+12+3v=5+9r-9 equation:


Simplifying
r + 12 + 3v = 5 + 9r + -9

Reorder the terms:
12 + r + 3v = 5 + 9r + -9

Reorder the terms:
12 + r + 3v = 5 + -9 + 9r

Combine like terms: 5 + -9 = -4
12 + r + 3v = -4 + 9r

Solving
12 + r + 3v = -4 + 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.
12 + r + -9r + 3v = -4 + 9r + -9r

Combine like terms: r + -9r = -8r
12 + -8r + 3v = -4 + 9r + -9r

Combine like terms: 9r + -9r = 0
12 + -8r + 3v = -4 + 0
12 + -8r + 3v = -4

Add '-12' to each side of the equation.
12 + -8r + -12 + 3v = -4 + -12

Reorder the terms:
12 + -12 + -8r + 3v = -4 + -12

Combine like terms: 12 + -12 = 0
0 + -8r + 3v = -4 + -12
-8r + 3v = -4 + -12

Combine like terms: -4 + -12 = -16
-8r + 3v = -16

Add '-3v' to each side of the equation.
-8r + 3v + -3v = -16 + -3v

Combine like terms: 3v + -3v = 0
-8r + 0 = -16 + -3v
-8r = -16 + -3v

Divide each side by '-8'.
r = 2 + 0.375v

Simplifying
r = 2 + 0.375v

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