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Which two signs and two numbers should be interchanged to make the given equation correct?
17 + 11 − 12 × 36 ÷ 6 = 80
x and - ; 17 and 11
+ and - ; 6 and 12
x and - ; 6 and 12
x and - ; 17 and 12
- Let's analyze option 1: If you interchange '×' and '-', along with swapping 17 and 11, substituting leads to incorrect results in order of operations.
- In option 2: Switching '+' and '-', and swapping 6 and 12 also leads to an incorrect equation as per the order of operations.
- Option 3 seems to work: Interchanging '×' and '-', and swapping 6 and 12, gives the expression '17 + 11 + 6 × 36 ÷ 12'. This simplifies to '17 + 11 + 18', resulting in 46, not 80.
- Option 4: Interchanging '×' and '-', and swapping 17 and 12 doesn't yield a valid outcome equivalent to 80.
Given the above analysis, none of the options make the equation correct.
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