Question 1152151


there are {{{(16x + 30)}}} boys 

and {{{(5x - 12)}}} more girls than boys

then, the number of girls is: {{{(16x + 30)+(5x - 12)=16x+5x+30-12=21x+18}}} 

 How many children are the tournament in terms of {{{x}}}

{{{boys + girls=16x + 30+21x+18=37x+48}}}

so, there are {{{37x+48}}} children at the tournament