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A number subtracted from 90 is 3 times that number
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A number subtracted from 90 is 3 times that number

User Dominic Santos
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2 Answers

4 votes
the equation is 90-n=3n but then to solve it you add n to both sides to get the variable on one side so then
90-n=3n becomes 90=4n and n=22.5
so the number is 22.5
User Sk Borhan Uddin
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7.7k points
5 votes
90-n=3n hope this helps you
User Yaxin
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8.4k points
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