A + (-25)=75 Solve the equation
1 answer:
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Texaschic nailed it when saying that it's arithmetic
The recursive way to write this is to say
which tells us "start at 6 and each time subtract off 5"
The
portion is the nth term while 
is the term just before the nth term
The recursive way to write this is to say
which tells us "start at 6 and each time subtract off 5"
The