8r-1=68

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Solution for 8r-1=68 equation: 


Simplifying
8r + -1 = 68

Reorder the terms:
-1 + 8r = 68

Solving
-1 + 8r = 68

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 + 8r = 68 + 1

Combine like terms: -1 + 1 = 0
0 + 8r = 68 + 1
8r = 68 + 1

Combine like terms: 68 + 1 = 69
8r = 69

Divide each side by '8'.
r = 8.625

Simplifying
r = 8.625

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