At a school the number of boy to girls is 11:9 there are 124 more boys than girls work out the total number of students at the s
1 answer:
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2f - 1
3f - 4|6f² - 11f - 13
- (6f² - 8f)
-3f - 13
- (-3f - 3)
-10
3f - 4|6f² - 11f - 13
- (6f² - 8f)
-3f - 13
- (-3f - 3)
-10