Answer:
20 - 4 + 2 x 1 - 4 + 3
= 20 - 4 + 2 - 4 + 3
= 16 + 2 - 4 + 3
= 18 - 4 + 3
= 14 + 3
= 17
17
Explanation:
You just do the step by step and add then subtract and so forth until you get 1 number.
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