The equation 5x-3 = 7x + 2 can be transformed into () a.5x+7x=2+3 b.-3-2=7x-5x c.5x-7x=2-3 d.3-2=7x-5x

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1. The following equation is transformed into 5x-2 = 7x + 8, and the result is as follows 5x-2 = 7x + 8, we get 3x + 20 = 4x-25 1-3 / 2x = 3x + 5 / 2
2. If the solution of equation 5x + 10 / 3 = 0 is the same as that of equation 3x + a whose absolute value = - 1, then what is a? (use the solution of equation) If the solution of equation 5x + 10 / 3 = 0 is the same as that of equation 3x + a whose absolute value = - 1, then what is a? (use equation solution)
3. 7x-2=5x-4
4. 4.5X + 8 = 7x to solve the equation There are also tests
5. The sum of two squares of equation x - 3x + 2 = 0 is A1, the sum of two squares of equation x + 7x + 12 = 0 is A2, and the sum of two squares of equation x - 11x + 30 = 0. Thank you, The sum of two squares of equation x - 3x + 2 = 0 is A1, the sum of two squares of equation x + 7x + 12 = 0 is A2, the sum of two squares of equation x - 11x + 30 = 0 is A3 The sum of the square of equation x + (- 1) times (4N-1) x + 2n (2n-1) = 0 is an. Try to find a1 + A2 + The value of A2008
6. -3x + 2 (- 3Y + 7x) - 6 (X-Y) - 10Y, where x = 1 / 2, y = 1 / 3
7. When solving equation 1.7x equals 8.5, you need to divide both sides of the equation by? X equals?
8. 7x-0.25 * 12 = 14.5 solved by equation Premonition
9. How to solve the equation 7x-25 = 12.4?
10. How to solve the equation of 0.4 * 0.25 + 0.7x = 1.5?
11. Let the equation x 2 + (AX) 2-7x-7ax + 2A + 12 = 0 have two equal roots and find the value of A
12. It is known that AB is two parts of the equation x ^ 2-7x + 9 = 0 and a
13. Let a and B be the two real roots of the equation x ^ 2-2x-4 = 0. Find a ^ 2 + 2B
14. It is known that z = I-1 is a root of the equation Z ^ 2 + ax + B = 0. 1) find the value of real numbers a and B. 2) conjecture the equation by combining WIDA's theorem And prove it
15. The product of 5 times a plus a minus 18 times 2 is equal to 139
16. 7 times 12 minus 3 x is equal to 24, the process of solving the equation is written completely
17. It is known that the lengths of two right angles of a right triangle are exactly the two roots of the equation 2x-3x-2 = 0 (1) The sum of the lengths of the two right angles of this right triangle (2) The area of this right triangle
18. The two right sides of a right triangle are the two roots of the equation x-7x + 12 = 0 What is the radius of the circumcircle of this right triangle
19. Given that the lengths of two sides of a right triangle are two of the equations x2-7x + 12 = 0, then the length of the third side is______ ．
20. If the equation 6x + 5y-2 on X Y is the same as 3rx-2ry + 4R = 0, and there is no y term after merging the class term, the value of R can be obtained