Solve by substitution. x plus yx+y equals=1010 yy equals=xplus+22 Select the correct choice below​ and, if​ necessary, fill in the answer box to complete your choice.
a. The solution of the system is nothing. ​(Type an ordered​ pair, using integers or​ fractions.)
b. The system has infinitely many solutions.
c. The system has no solution.