8r-9=47

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Solution for 8r-9=47 equation: 


Simplifying
8r + -9 = 47

Reorder the terms:
-9 + 8r = 47

Solving
-9 + 8r = 47

Solving for variable 'r'.

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

Add '9' to each side of the equation.
-9 + 9 + 8r = 47 + 9

Combine like terms: -9 + 9 = 0
0 + 8r = 47 + 9
8r = 47 + 9

Combine like terms: 47 + 9 = 56
8r = 56

Divide each side by '8'.
r = 7

Simplifying
r = 7

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