Answer :

arushisahasi

Answer:

7*6-x

or

42-x

Step-by-step explanation:

decrease means subtraction,

product means multiplication

let x be the number you are decreasing by.

I am not really sure how to explain this, but here I go.

you take away x from the number that equals 6*7.

6*7 is 42 and you take away x from that, you get 42-x

or if you want to leave it unsimplified,

6*7-x

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