3 years ago

Sixteen diminished by 8 times a number is the same as 5 diminished by 9 times the number. find the number.

1 answer:

3 0

16-8n=5-9n add 9n to both sides

16+n=5 subtract 16 from both sides

n=-11

check...

16-(8*-11)=5-(9*-11)

16-(-88)=5-(-99)

16+88=5+99

104=104

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$(-15,9) \\
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\hbox{the length:} \\
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