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Mathematics 14 Online
OpenStudy (anonymous):

Write the given sentence as an equation. Tim’s age in 7 years will be three times what it was 19 years ago.

OpenStudy (pfenn1):

Let x= Tim's age now. Tim’s age in 7 years will be three times what it was 19 years ago. Let's parse this.... Tim's age in 7 year means Tim's age now (x) + 7 years. How would you write a mathematical expression for "will be three times what it was 19 years ago"?

OpenStudy (anonymous):

I'm not sure...

OpenStudy (pfenn1):

his age will be three times what it was 19 years ago = 3 (x-19)

OpenStudy (anonymous):

Thanks!

OpenStudy (pfenn1):

you're welcome

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