3r-5=13

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Solution for 3r-5=13 equation: 


Simplifying
3r + -5 = 13

Reorder the terms:
-5 + 3r = 13

Solving
-5 + 3r = 13

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + 3r = 13 + 5

Combine like terms: -5 + 5 = 0
0 + 3r = 13 + 5
3r = 13 + 5

Combine like terms: 13 + 5 = 18
3r = 18

Divide each side by '3'.
r = 6

Simplifying
r = 6

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