Question

Four less than the product of seven and a number is seventeen. What is the number?

Answer 1

hello!

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First of all, let the number be u.

The product of 7 and u means you should multiply 7 times u:

$\pmb{7u}$

Now, subtract 4:

$\pmb{7u-4}$

This expression equals 17:

$\pmb{7u-4=17}$

$\rule{200}{2}$

[Now, let's Find the Value of u]

First, add 4 to both sides:

$\pmb{7u=21}$

Now, divide both sides by 7:

$\pmb{u=3}$

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notes:-

Hope everything is clear; if you need any clarification /explanation, kindly let me know, and I will comment and/or edit my answer :)