3r-1=r+3

Solution for 3r-1=r+3 equation:

Simplifying
3r + -1 = r + 3

Reorder the terms:
-1 + 3r = r + 3

Reorder the terms:
-1 + 3r = 3 + r

Solving
-1 + 3r = 3 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
-1 + 3r + -1r = 3 + r + -1r

Combine like terms: 3r + -1r = 2r
-1 + 2r = 3 + r + -1r

Combine like terms: r + -1r = 0
-1 + 2r = 3 + 0
-1 + 2r = 3

Add '1' to each side of the equation.
-1 + 1 + 2r = 3 + 1

Combine like terms: -1 + 1 = 0
0 + 2r = 3 + 1
2r = 3 + 1

Combine like terms: 3 + 1 = 4
2r = 4

Divide each side by '2'.
r = 2

Simplifying
r = 2