What does it mean to evaluate an expression in math?

Mathematics

2 answers:

Ymorist [56]3 years ago

7 0

It mainly means 'simplifying an expression down to a single numerical value', I believe.

zzz [600]3 years ago

7 0

Step-by-step explanation: To evaluate an expression means simplifying it down to a number and usually you will be given variables to substitute in and evaluate.

For example, let's evaluate the expression 3y + 7 when y = 2.

We simply multiply 3 x 2 and add 7 or 3(2) + 7.

3 x 2 is 6 so we have 6 + 7 which is 13.

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Zepler [3.9K]

Answer:

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Step-by-step explanation:

Let's call "x" to the number we are looking for.

Now, the problem states that "5 more than the quotient of a number and 8 is 42". This means that this number is being divided by 8, it's also being additioned 5 and the final result is 42. Therefore, the expression of this operations on this number is the following:

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