How to solve the equation X-1 / 4x - (1 / 4x-4) = 50

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• 2. 1, the solution of the equation 2 / 1 {x-3 / 1 [x-4 / 1 (x-3 / 2) - 3 / 2} = x + 4 / 3 is (). 2, the equation of X: 2A + 5x = 7x-2b (a, B are known numbers), () Urgent! If you are satisfied with the answer, I will give you satisfaction points!
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• 5. When Xiaochun calculates a division, he takes 72 as 27, the result quotient is 14, and the remainder is 18. What is the correct number?
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• 7. Xiao Ming asked his father how old he was, and he said, "divide my age by 6, add 14, multiply by 3, and finally subtract 27. It's 33 years old."
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• 11. 27 ° 15 ′ 36 ″ = () degree
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• 15. 1 / 3, 5 / 9, 19 / 27. What is the eighth number?
• 16. Simple operation 79 △ 115 + 29 × 511 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 4 × 1.28 × 25 & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; (58 + 127) × 8 + 1927
• 17. 27: () = 1 / 16 () = 0.375 = () 24
• 18. (): () = 0.375 = 27: () = 32 of what
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