If you mean this:
r -2s and s equals 14
plus 14 in for s
r-2(14)
so solve you can multiply 2 by 14 to get 28
r-28
if this is the other type of algebra question where you can't leave it unsolved you can make it an equation to solve for r
r-28=0
add 28 to both sides to get r alone
r=28
