# emanuel has 745 pictures in his phone. His memory is getting full, so he starts deleting 20 pictures everyday. define each variable and write an algebraic expression to describe the number of pictures left on his phone after any given number of days

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## Question:

emanuel has 745 pictures in his phone. His memory is getting full, so he starts deleting 20 pictures everyday. define each variable and write an algebraic expression to describe the number of pictures left on his phone after any given number of days

Let

x———-> the number of days

y——–> the number of pictures left on his phone

we know that

therefore