5r-8+12r-20=

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Solution for 5r-8+12r-20= equation:


Simplifying
5r + -8 + 12r + -20 = 0

Reorder the terms:
-8 + -20 + 5r + 12r = 0

Combine like terms: -8 + -20 = -28
-28 + 5r + 12r = 0

Combine like terms: 5r + 12r = 17r
-28 + 17r = 0

Solving
-28 + 17r = 0

Solving for variable 'r'.

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

Add '28' to each side of the equation.
-28 + 28 + 17r = 0 + 28

Combine like terms: -28 + 28 = 0
0 + 17r = 0 + 28
17r = 0 + 28

Combine like terms: 0 + 28 = 28
17r = 28

Divide each side by '17'.
r = 1.647058824

Simplifying
r = 1.647058824

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