5r+8r-1=19

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Solution for 5r+8r-1=19 equation:


Simplifying
5r + 8r + -1 = 19

Reorder the terms:
-1 + 5r + 8r = 19

Combine like terms: 5r + 8r = 13r
-1 + 13r = 19

Solving
-1 + 13r = 19

Solving for variable 'r'.

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

Add '1' to each side of the equation.
-1 + 1 + 13r = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 13r = 19 + 1
13r = 19 + 1

Combine like terms: 19 + 1 = 20
13r = 20

Divide each side by '13'.
r = 1.538461538

Simplifying
r = 1.538461538

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