6)
identify the variable:
lets x is the number of males graduated
females = x + 25 (25 more females than males)
write the equation
x + x + 25 = 139
solve equation
x + x + 25 = 139
2x + 25 = 139
2x = 139 - 25
2x = 114
x = 114/2
x = 57
x + 25 = 57 + 25 = 82
state your solution
males = 57
females = 82
double check: 57 + 82 = 139 (total graduated)