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2. Write a function machine for each problem. Then find the input to t
mystery number:
a) I think of a number, muloply by 5 and add 7. The answer is 27
b) I think of a number, halve it then subtract 7 The answer is 2
Write an algebraic mapping to describe each of these sets of inputs and outputs:
a) 4-1
7-4
3-0
8-5
b) 0-0
349
2-6
15-4.5