Question

write an algebraic expression for 3 subtracted from a number y​

Answer 1

Answer:

y-3

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Answer 2

Given,

3 is subtracted from a number y.

To find,

An algebraic expression for 3 subtracted from a number y.

Solution,

The algebraic expression for 3 subtracted from a number y will be (y-3).

We can easily solve this problem by following the given steps.

The question is given in words and we have to express it using mathematical signs.

We know that 'subtraction' in mathematics is denoted using '-'. For example, the expression for 5 subtracted from x will be (x-5).

So, the expression for the given question will be written using '-'.

Hence, the expression is (y-3).

( Note that the number which is written after 'subtracted from' is written first in the expression. Here, in this case, the number after 'subtracted from' is y. So, y is written before in the expression.)

( More to know: the word 'times' is used for multiplication in mathematics. For example, the expression for 6 times x will be 6x.)