6r-21=75

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Solution for 6r-21=75 equation: 


Simplifying
6r + -21 = 75

Reorder the terms:
-21 + 6r = 75

Solving
-21 + 6r = 75

Solving for variable 'r'.

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

Add '21' to each side of the equation.
-21 + 21 + 6r = 75 + 21

Combine like terms: -21 + 21 = 0
0 + 6r = 75 + 21
6r = 75 + 21

Combine like terms: 75 + 21 = 96
6r = 96

Divide each side by '6'.
r = 16

Simplifying
r = 16

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