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dalvyx [7]
3 years ago
7

Eight times a number is the same as 90 decreased the number. find the number.

Mathematics
1 answer:
Brrunno [24]3 years ago
3 0
8n=90-n 
first get the n to one side...
8n^2=90
then divide
n^2=11.25
(i feel like theres one more step but im unsure)
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