27=6+r

Solution for 27=6+r equation:

Simplifying
27 = 6 + r

Solving
27 = 6 + 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.
27 + -1r = 6 + r + -1r

Combine like terms: r + -1r = 0
27 + -1r = 6 + 0
27 + -1r = 6

Add '-27' to each side of the equation.
27 + -27 + -1r = 6 + -27

Combine like terms: 27 + -27 = 0
0 + -1r = 6 + -27
-1r = 6 + -27

Combine like terms: 6 + -27 = -21
-1r = -21

Divide each side by '-1'.
r = 21

Simplifying
r = 21