motherkail
motherkail
11-05-2018
Mathematics
contestada
Using cross multiplication how to you find n
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ksalmon1
ksalmon1
11-05-2018
Multiply both sides by the 2 denominators...if you do this you end up with:
10(n-6)=9(n-4)
10n-60 = 9n-36
10n-9n = -36 + 60
n=24
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altavistard
altavistard
11-05-2018
Cross-multiply: 10(n-6) = 10n - 60 and 9n - 36. Set these 2 results equal to each other: 10n - 60 = 9n - 36. Then n=24. By all means, check to ensure that this value n=24 actually satisfies the original equation.
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