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Write an expression using division and subtraction with a sum of 3

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Final answer:

To create an expression with division and subtraction that results in a sum of 3, you subtract 3 from a variable and then divide by another variable.

The expression looks like (x - 3) / y, where x and y are the variables in question.

Step-by-step explanation:

According to mathematical rules, when we subtract a positive number, we change its sign and then add.

For example, subtracting 3 from 5 is written as 5 - (+3), which equals 5 - 3 = 2.

Similarly, to subtract a negative number, such as -6 from 2, we change the sign of the number being subtracted and then add: 2 - (-6) = 2 + 6 = 8.

Now, let's construct an expression using division and subtraction.

Suppose we want to subtract the sum of 3 from a number and then divide by another number. If we let the number to be subtracted from be x, and the divisor be y, our expression would be (x - 3) / y.

This expression indicates that we subtract 3 from the variable x and then divide the result by the variable y. For instance, if x was 8 and y was 2, the expression would be (8 - 3) / 2, which is 5 / 2, resulting in 2.5.

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