6=r-1

Solution for 6=r-1 equation:

Simplifying
6 = r + -1

Reorder the terms:
6 = -1 + r

Solving
6 = -1 + 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.
6 + -1r = -1 + r + -1r

Combine like terms: r + -1r = 0
6 + -1r = -1 + 0
6 + -1r = -1

Add '-6' to each side of the equation.
6 + -6 + -1r = -1 + -6

Combine like terms: 6 + -6 = 0
0 + -1r = -1 + -6
-1r = -1 + -6

Combine like terms: -1 + -6 = -7
-1r = -7

Divide each side by '-1'.
r = 7

Simplifying
r = 7