2+5r+r=20

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Solution for 2+5r+r=20 equation: 


Simplifying
2 + 5r + r = 20

Combine like terms: 5r + r = 6r
2 + 6r = 20

Solving
2 + 6r = 20

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + 6r = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 6r = 20 + -2
6r = 20 + -2

Combine like terms: 20 + -2 = 18
6r = 18

Divide each side by '6'.
r = 3

Simplifying
r = 3

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