3r=13+4r

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Solution for 3r=13+4r equation: 


Simplifying
3r = 13 + 4r

Solving
3r = 13 + 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.
3r + -4r = 13 + 4r + -4r

Combine like terms: 3r + -4r = -1r
-1r = 13 + 4r + -4r

Combine like terms: 4r + -4r = 0
-1r = 13 + 0
-1r = 13

Divide each side by '-1'.
r = -13

Simplifying
r = -13

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