13=3r+5+r

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Solution for 13=3r+5+r equation:


Simplifying
13 = 3r + 5 + r

Reorder the terms:
13 = 5 + 3r + r

Combine like terms: 3r + r = 4r
13 = 5 + 4r

Solving
13 = 5 + 4r

Solving for variable 'r'.

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

Add '-4r' to each side of the equation.
13 + -4r = 5 + 4r + -4r

Combine like terms: 4r + -4r = 0
13 + -4r = 5 + 0
13 + -4r = 5

Add '-13' to each side of the equation.
13 + -13 + -4r = 5 + -13

Combine like terms: 13 + -13 = 0
0 + -4r = 5 + -13
-4r = 5 + -13

Combine like terms: 5 + -13 = -8
-4r = -8

Divide each side by '-4'.
r = 2

Simplifying
r = 2

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