What would be the equation to represent Jer's age if Jeri is 3 years younger than Laura, whose age is #x#?

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Answer 1 · 2017-04-24T12:33:19

See the solution process below:

Let's write Jer's age as #j#

And, Laura's age was given as #x#.

Because Jer is 3 years younger than Laura we can write:

#j = x - 3#

So, if Laura was #10# we can substitute #10# for #x# giving:

#j = 10 - 3#

#j = 7#

This shows the equation gives the correct results, if Laura is #10# then Jer is #7# which is 3 years younger than Laura.