r+r+1=85

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Solution for r+r+1=85 equation: 


Simplifying
r + r + 1 = 85

Reorder the terms:
1 + r + r = 85

Combine like terms: r + r = 2r
1 + 2r = 85

Solving
1 + 2r = 85

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 + 2r = 85 + -1

Combine like terms: 1 + -1 = 0
0 + 2r = 85 + -1
2r = 85 + -1

Combine like terms: 85 + -1 = 84
2r = 84

Divide each side by '2'.
r = 42

Simplifying
r = 42

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