It is known that Y1 = 3x-2, y2 = 3 + 2x. When x takes what value, Y1 = Y2?

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• 1. It is known that Y1 = 3x + 2, y2 = - 2x + 4. When x takes what value, Y1 is greater than Y2
• 2. It is known that Y1 = 2 (3x + 4) and y2 = 5 (2x-7). When we find out the value of X, Y1 is 3
• 3. Given that Y1 = 2 (3x + 4), y2 = 5 (2x-7), when x is what value, Y1 is 3 times larger than Y2
• 4. It is known that: Y1 = 2 (3x + 4), y2 = 5 (2x-8) when x takes what value, (1) Y1 and Y2 are opposite to each other? (2) y 2 smaller than Y2?
• 5. Is the following shift correct? Wrong correction. From 2x = X-5 to 2x-x = 5; from 4x + 1 = 2x + 3 to 4x + 2x = 1 + 3; from 2x-1 = 3x + 3 to 2x-3x = 3 + 1
• 6. It is known that Y1 = 3x-2, y2 = 4x-7 (1) When x goes to what value, the values of Y1 and Y2 are equal? (2) when x goes to what value, Y1 is less than Y2 by 6? (3) when x takes what value, Y1 and Y2 are opposite to each other?
• 7. 1. Given that Y1 = - x 3, y2 = 3x-4, when x takes what value, Y1 > Y2? How do you do it?
• 8. It is known that Y1 = 4x + 8, y2 = 3x-7 When x takes what value, Y1 and Y2 are opposite to each other
• 9. It is known that the opening direction and size of the parabola Y1 = a (X-H) &# 178; + K and y2 = (X-2) &# 178; - 7 are the same, and the lowest point is the same It is known that the opening direction and size of the parabola Y1 = a (X-H) & # 178; + K and y2 = (X-2) & # 178; - 7 are the same, and the coordinates of the lowest point are (- 1, - 2). Find the functional relationship of the parabola Y1, and point out whether the parabola Y1 can be obtained by Y2 translation, and if so, how to translate it
• 10. Given that a (- 2, Y1), B (- 1, Y2) and C (2, Y3) are all on the square of the parabola y = 2x, then the size relation of Y1, Y2 and Y3 is
• 11. When is Y1 greater than Y2 Answer process
• 12. Given y = y1-y2, where Y1 is inversely proportional to 3x, Y2 is positively proportional to the square of X, and when x = 1, y = 6, when x = - 1, y = - 2 1) 2) when x = - 2, the value of Y
• 13. Y = Y1 + Y2, where Y1 is inversely proportional to 3x, Y2 is positively proportional to - x, and when x = 1, y = - 5 / 3, when x = 2, y = 2 / 3 seek (1) The function analytic expression of Y and X (2) When x = - 1, the value of Y
• 14. 3x-5y-6x-7y + 9x-2y, can you help me solve this problem of merging similar terms and teach me how to solve it
• 15. -X-5y + 3x-2y merge the same kind
• 16. In the system of equations, if the values of a pair of X and Y in 4x + k = 7 and 3x-5y = 16 are equal, what is the value of K, and the solution of the system of equations is obtained
• 17. Simplify, (2 √ 9 + √ 27) of √ 3 3 √ 2 (√ 8 - √ 18) (√ 18 + √ 32) of 3 √ 2
• 18. There is a cube with the number 123456 written on six sides I didn't expect it to be so difficult There is a cube with the numbers 1, 2, 3, 4, 5 and 6 written on its six faces. Three people observe it from different positions, and the results are shown in the figure below
• 19. Using the collocation method, it is proved that the value of the algebraic formula - 10x2 + 7x-4 is always less than 0. From the above conclusion, can you write three quadratic trinomial formulas whose values are always greater than 0, and the coefficients of the quadratic terms are l, 2, 3?
• 20. Write a function to determine the prime number, input an integer in the main function, and output the information whether it is a prime number