7r-3+r=69

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Solution for 7r-3+r=69 equation: 


Simplifying
7r + -3 + r = 69

Reorder the terms:
-3 + 7r + r = 69

Combine like terms: 7r + r = 8r
-3 + 8r = 69

Solving
-3 + 8r = 69

Solving for variable 'r'.

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

Add '3' to each side of the equation.
-3 + 3 + 8r = 69 + 3

Combine like terms: -3 + 3 = 0
0 + 8r = 69 + 3
8r = 69 + 3

Combine like terms: 69 + 3 = 72
8r = 72

Divide each side by '8'.
r = 9

Simplifying
r = 9

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