A number n decreased by 5

The new number after decreasing the original number "n"  by 5 is (n - 5).

Let the unknown number = n

When a number is decreased by another number, it implies that the new number or outcome will be the difference between the two old or original numbers.

To decrease the number by 5, you will subtract 5 from the number as shown below;

the unknown number is decreased by 5:  n - 5

Thus, the new number after decreasing the original number "n"  by 5 is (n - 5).

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n - 5

Step-by-step explanation:

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y=4

step-by-step explanation:

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: