n/2 - 3n/4 + 5n/6=21
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Answered by
26
Get the LCD of the numbers = 12
Then it is..
6n/12 - 9n/12 + 10n/12 = 21
Multiply all sides by 12
6n - 9n + 10n = 252
7n = 252
n = 36
Please mark brainliest or thanks if it helped :D
Then it is..
6n/12 - 9n/12 + 10n/12 = 21
Multiply all sides by 12
6n - 9n + 10n = 252
7n = 252
n = 36
Please mark brainliest or thanks if it helped :D
Answered by
18
n/2-3n/4+5n/6=21
=> [6n - 9n + 10n]/12 = 21
=> 7n/12 = 21
=> n = 36
=> [6n - 9n + 10n]/12 = 21
=> 7n/12 = 21
=> n = 36
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