20+6r=3r-13

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Solution for 20+6r=3r-13 equation: 


Simplifying
20 + 6r = 3r + -13

Reorder the terms:
20 + 6r = -13 + 3r

Solving
20 + 6r = -13 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
20 + 6r + -3r = -13 + 3r + -3r

Combine like terms: 6r + -3r = 3r
20 + 3r = -13 + 3r + -3r

Combine like terms: 3r + -3r = 0
20 + 3r = -13 + 0
20 + 3r = -13

Add '-20' to each side of the equation.
20 + -20 + 3r = -13 + -20

Combine like terms: 20 + -20 = 0
0 + 3r = -13 + -20
3r = -13 + -20

Combine like terms: -13 + -20 = -33
3r = -33

Divide each side by '3'.
r = -11

Simplifying
r = -11

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