The method of moving term to solve equation When Xiao Li solves the equation 13-x = 5A {x is unknown}, he mistakenly looks at - x as + X, and gets the solution of the equation as x = - 2, then the solution of the original equation is?

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• 1. What is the basis of moving terms in solving equations?
• 2. Term shifting is a common deformation in solving equations. Its theoretical basis is that ()
• 3. The principle of "term shifting" in solving equations is based on ()
• 4. Solving equation with transfer term 1、18x+5=45-2(X-15) 2、2X+4+5X=4+11 3、6X+18-2X=X-5X+26 4、5(X-3)-5=2(X-4) 5、6X-2(X-3)=3X+10 The solution should be complete,
• 5. In solving the equation, the term should be shifted according to ()
• 6. Inequalities on logarithm (in x) + 1 > 0 for X
• 7. log2^x >= log4^(3x+4) How can log2 and log4 become the same base? Ah, it should be very simple for you. I hope some good people can help me, The base numbers are two and four
• 8. Solving logarithmic inequality Log (x + 1 is base, (x ^ 2 + X-6) ^ 2 is true) > = 4
• 9. Inequality of logarithmic solution 1 / 2 power of logm2 > 1 M is the base 1 / 2 of 2 is true
• 10. How to solve logarithmic inequality? The logax is less than - 1, where x is greater than 2008 and a is greater than 1
• 11. 1）2x²-4x-1=0 ；2）5x+2=3x² ；3）（x-2）（3x-5）=1 ；4）(x+6.8)²+x=10²
• 12. If the boundary of the plane region determined by the system of inequalities x = 0, Y > = 0, (n > 0) is a triangle, and its If by the system of inequalities {x=0,(n>0) y>=0 If the boundary of the determined plane region is a triangle and the center of its circumscribed circle is on the x-axis, then the real number M=
• 13. Try to use the system of inequalities to express the triangle region (including boundary) enclosed by the straight line x + y + 2 = 0, x + 2Y + 1 = 0, 2x + y + 1 = 0______ ．
• 14. It is known that the equations of the three sides of a triangle are X-Y + 3 = 0, x + 2Y = 0 and 2x + y-4 = 0 respectively. The inner region (including the boundary) of a triangle is represented by a system of inequalities
• 15. Try to use the system of inequalities to express the triangle region (including boundary) enclosed by the straight line x + y + 2 = 0, x + 2Y + 1 = 0, 2x + y + 1 = 0______ ．
• 16. Given that the even function y = f (x) is a monotone decreasing function on [- 1,0], and α and β are two inner angles of an acute triangle, then f (sin α)______ F (COS β)
• 17. [mathematics of senior two] it is known that the function f (x) = ax ^ 2 - (2a + 1) x + 2 (a > 0), and the angles a and B are the two inner angles of the acute triangle ABC ①f(sinA)>f(cosB) ②f(sinA)f(sinB) ④f(cosA)
• 18. Find the determinant | A1 A2 A3 A4 A5 | B1 B2 B3 B4 B5 | C1 C2 C3 C4 C5 | B5 B4 B3 B1 | A1 A2 A3 A4 A5|
• 19. In the triangle ABC, if the angles a, B and C form an arithmetic sequence, then A3 + B3 + C3=
• 20. ABC is the three sides of a triangle. If A3 + B3 = C3, then it is a triangle