Question 162159
# of girls in class=3x-2
# of boys in class =x

We know that the number of students is 26

Therefore the equation will be 3x-2+x=26

simplify the x terms and add 2 to both sides

4x=28 divide both sides by 4 to get the # of boys


x=28/4  x=7

Although we are not to solve we can double chek our answer

7+3(7)-2= 5+21=26