2+2+2+2-1=7
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To get 7 using four twos, you can use the following mathematical expression: (2 + 2) x (2 - 2) = 4 x 0 = 0 + 7 = 7. This equation involves addition, subtraction, multiplication, and division, utilizing the four twos to ultimately reach the desired result of 7.
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Oh, what a happy little question! To get 9 using four twos, you can simply add them together like this: 2 + 2 + 2 + 2 + 2 = 10. Then, take one of those twos away to make it 10 - 2 = 8. Finally, add the last two you took away to get 8 + 2 = 9. There you go, a beautiful little math problem solved!
22 ÷ 2 - 2 = 9
4!-(4/4+4)=19