Question

Help me answer this question please

Answer 1

There are
`b` boys and
`g` girls. We know that

`b+g=22` (since there are twenty-two students in total)

`b=3g+2` (since the number of boys is two more than three times the girls)

From the first equation, we can derive
`g=22-b`

Substitute this expression in the second equation to get

`b = 3(22-b)+2`

Expand:

`b = 66-3b+2`

`4b = 68`

`b = 17`