（3/5x-20）*4/5=2/5x

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• 1. 5x+4/3+x-1/4=2-5x+5/12
• 2. Junior high school mathematics 5x + 1 / 6 = 7 / 2 3-x / 2 = x-4 / 3 x + 2 / 4-3-x / 8 = 0 X / 2-x-1 / 3 = 1 2x1 / 2 = x + 3 / 4-2-3x / 8 x-10x + 1 / 12 = 2x + 1 / 4-1 if there are good ones, I will offer more rewards
• 3. 2X of 3 + 0.5x = 14 solve equations Clear. Five minutes
• 4. Calculation: 49 / 50 × 51-3 / 11 × 77 × 7 / 3 solution: X-1 / 2 = 2 / 3-3 / 4
• 5. 3×+7.4=20 6.4×+3.6×=51
• 6. 1 / 20x-51 / 4 = 3 / 4 / table is fast division solve equations
• 7. 20 △ 5x = 80 solution x =?
• 8. How to solve 8 (x + 3) - 5x = 27
• 9. Solution equation: X / (x + 1) = 2x / 3 (x + 1) + 1
• 10. (2.4-x) ^ 2 + (0.7 + 2x) ^ 2 = 2.5 ^ 2 to solve the equation
• 11. 5x=80 5x÷x=80÷x 5=?
• 12. Complete set u = {1,2,3,4}, a = {X / X × x-5x + P = 0}, CUA = {x × x-qx + 6 = 0}, find the value of P, q?
• 13. Given that the value of polynomial 5x & # 178; - 6x + 10 is 5, then what is the value of 5x-3 of 6
• 14. 6.5x + x-0.5 = 7 process
• 15. 7.9*2-1.5x=5.3
• 16. x+7/2=1/5x+11.5
• 17. 99%+91×（213-17）
• 18. -X + (3x-2) - (6x + 7), - 3 (5x / 1-6), - 3,
• 19. 5x ^ + 30x + 45-5 x-3 5 = 0 help to calculate
• 20. The root of x ^ 2-5x-36 = 0