SOLUTION: There are 40 pupils in a class. There are X more girls than boys. How many boys are there in terms of X?

Question 750832: There are 40 pupils in a class. There are X more girls than boys. How many boys are there in terms of X?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
There are 40 pupils in a class. There are X more girls than boys. How many boys are there in terms of X?
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Let # of boys be "b":
Then # of girls is "b+x"
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Equation:
b + b + x = 40
2b + x = 40
2b = 40-x
# of boys = b = (40-x)/2
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Cheers,
Stan H.
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