The process of solving equation 3x + 1 = - 2

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• 2. The solution of equation 9x-12 = 60 + 7x is? A.x = = 4 b.x = 12 c.x = 24 D.X = 36 Come on, come on\\\\
• 3. How to solve the equation of 24 + 7x = 40.8
• 4. Finding the positive integer solution of equation 7x + 2Y = 24
• 5. 37 * 7 + 7x + 300 = 860 to solve the equation
• 6. 7 (37 + x) + 300 = 860 solve this equation
• 7. How to solve the inverse equation of 37.5-5x = 7x
• 8. Solving the quadratic equation of 2 variables 5x-7y = 23,7x + 4Y = 46
• 9. The solution equation is 1-6x = (3y-x) 2 = (x + 2Y) 3
• 10. 1. The solution equation: {x-2y = - 1; 3 (X-2) = 1-y {4x-3y = - 2; X / 4 + Y / 6 = 3 2. First simplify, then evaluate (x-1) (X-2) - 3x (x + 3) - (x-1) ^ 2, where x = 3 3. Calculation: (- 1 / 2) ^ 2 / (- 2) ^ 3 * (- 2) ^ 2
• 11. The equation x / (X-2) + (X-2) / x + (2x + a) / X (X-2) = 0 has only one real root
• 12. Given that a, B and C are all real numbers, a ^ 2 + B ^ 2 + C ^ 2 = 1, what are the maximum and minimum values of AB + BC + AC?
• 13. How many ways can I fill six numbers 123456 in the circle to make the sum of three numbers on each line equal?
• 14. How to solve the equation problem: X-1 / 2 + X + 1 / 3x = 2?
• 15. When k is a real number, the equation x ^ 2 + 2 (k-1) x + 3K ^ 2-11 = 0 has two unequal real roots?
• 16. How to put the six numbers 123456 into a triangle and ask the sum of the three numbers on each side to be equal?
• 17. 3 / 4 x △ 2 = 3 solution equation
• 18. It is known that the equation (K's Square-1) x's Square-6 (3K-1) x + 72 = 0 has two unequal real roots, so we can find the value of K
• 19. If the negative power of X + X is 3, what is the square of X + the negative power of X?
• 20. How many five digit numbers can be formed with 0, l, 2, 3, 4, 5? Five odd? Five even? The answer is 600 3240 3240