Me with this answer in denise's class there are 7 more boys than girls. there are 13 students in all. how many boys are there in denise's class?

if the girls are "g" and the boys are "b"

g + b = 13

b = g + 7 <--- 7 more boys than girls

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!