SOLUTION: A math class has 57 students in the class. The number of boys is 3 less than twice the number of girls enrolled. How many boys and girls are in the class?

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Question 966721: A math class has 57 students in the class. The number of boys is 3 less than twice the number of girls enrolled. How many boys and girls are in the class?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
B+G=57
B=2G-3
(2G-3)+G=57
3G-3=57
3G=57+3
3G=60
G=60/3
G=20 GIRLS.
B+20=57
B=57-20
B=37 BOYS.
PROOF:
37=2*20-3
37=40-3
37=37