Contest: It Pays to Use Alloprof This Summer!

Ask a school-related question in the Help Zone and you could win \$100 for a summer activity.

Help Zone

Student Question

Grade 6 • 1mo.

math strategy: how to find in quickly. Two numbers that when we add them we get 433 and when we subtract them it is 39 (the two exact numbers).

Mathematics

{t c="richEditor.description.title"} {t c="richEditor.description.paragraphMenu"} {t c="richEditor.description.inlineMenu"} {t c="richEditor.description.embed"}

Explanations (1)

• Explanation from Alloprof

Explanation from Alloprof

This Explanation was submitted by a member of the Alloprof team.

Options
Team Alloprof • 1mo.

Hi there!

Thanks for tuning in :)

It seems like you already asked this question? Just like my colleague answered, to solve this problem without using a trial and error method, you would have to use algebra:

(x+y)+(xy)=433+39

2𝑥=472

𝑥=472/2

𝑥=236

And then we would have to integrate that number in the first equation:

236+y=433

𝑦=433−236

y=197

Just like my colleague said, keep in mind that this is a problem that couldn't be solved with this method as per the knowledge you learn in sixth grade!

Hope that helps!

Ariane