Question 241818
Hi!
im having a hard time with inverse operations.
the homework problem is this one: 
State the inverse operation.
#1.add 18 and #2.subtract 31 
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If your #1 and #2 are a sequence of two operations
you would form the inverse by the following sequence
of operations.
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#1 add 31 and then #2 subtract 18
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If an operation takes three steps a,b,c in that order
the inverse must 1st remove c, then remove b, then remove a.
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If f(x) = 3x+2
then f^-1(x) = (x-2)/3
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Cheers,
Stan H.