9(r) - 7 - 74 = ? 9(r) - 81 You have to solve this part →
9 = ___ [ the answer that goes inside of the blank is '0']
We have to solve this one too! →
(r) - 9 = 0 Since, this is the case we have to add ( + ) from the number
9 on each of your sides to make it more simpler
We have
one solution in this particular problem..
Therefore, the value of "r" is
9