i need help with this problem

Mathematics
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in a certain school there are 35 more girls than boys. If the total student population of the school is 247, how many are boys?

Dec 10th, 2014

b = number of boys

g = number of girls (b + 35) since there are 35 more girls than boys

b + (b + 35) = 247

2b + 35 = 247

subtract 35 from both sides

2b + 35 - 35 = 247 - 35

2b = 212

b = 212/2 = 106

Number of boys 106

Number of girls b + 35 = 106 + 35 = 141

Total number of students should be 247 = 106 + 141 CHECKS OUT

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Dec 10th, 2014

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