A number subtracted from 90 is three times that number

2 answers:

8 0

90 - x = 3xnow you need to solve for x
By combining the x-terms, we get 90 = 4x. Dividing both sides of the equation by 4, we get x = 2.25, or 9/4.

sergeinik [125]2 years ago

3 0

90-n=3n
90=4n
22.5=n

Final answer 22.5

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