Sarita has to solve the problem below for homework 2x+3y=25 4x+2y=22 which variable should she choose to solve for so that she can use substitution to solve the system? a. sarita should solve for y in the second equation because the coefficients can be reduced by a common factor to eliminate the coefficient for y. b. sarita should solve for x in the first equation because the coefficients can be reduced by a common factor to eliminate the coefficient for x. c. sarita should solve for y in the first equation because the coefficients can be reduced by a common factor to eliminate the coefficient for y. d. sarita should solve for x in the second equation because the coefficients can be reduced by a common factor to eliminate the coefficient for x.