12r-16=3r+5

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Solution for 12r-16=3r+5 equation:


Simplifying
12r + -16 = 3r + 5

Reorder the terms:
-16 + 12r = 3r + 5

Reorder the terms:
-16 + 12r = 5 + 3r

Solving
-16 + 12r = 5 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
-16 + 12r + -3r = 5 + 3r + -3r

Combine like terms: 12r + -3r = 9r
-16 + 9r = 5 + 3r + -3r

Combine like terms: 3r + -3r = 0
-16 + 9r = 5 + 0
-16 + 9r = 5

Add '16' to each side of the equation.
-16 + 16 + 9r = 5 + 16

Combine like terms: -16 + 16 = 0
0 + 9r = 5 + 16
9r = 5 + 16

Combine like terms: 5 + 16 = 21
9r = 21

Divide each side by '9'.
r = 2.333333333

Simplifying
r = 2.333333333

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