The values of the algebraic expressions 4x + 2 and 3x-9 are opposite to each other

4x+2+3x-9=0

RELATED INFORMATIONS

1. On the system of equations 3x + YK + 1, x + 3Y = 3 of X, and X + y is nonnegative, what is the range of K?
2. If the solutions of the equations 2x + y = K + 1,3x-y = 3 about X, y are a pair of negative numbers, then the value range of K is?
3. Factorization: the second power of (A-2) - (2a-4)
4. 777 power of 777 + 888 power of 888 + 999 power of 999 single digit?
5. What is the mantissa of 777 times 888 times 999?
6. What is the number at the end of 777 to the power of 777?
7. What is the single digit of 67 to the 999 power
8. What are the single digits of the 999 power of 999 and the 2007 power of 2007
9. Four to the power of two thousand times one sixteenth to the power of one thousand is equal to? 4^2000×（1/16)^1000=
10. -The value of 2Ab × (the second power of a, B + the second power of 3AB - 1)
11. It is known that the a + 3 power of - 4Y multiplied by the 3 power of X and the 3-B power of 4x multiplied by the 4 power of y can be combined into one term, and the algebraic formula 3 can be obtained
12. Find all non negative integer solutions of X that make algebraic formula 1 + X / 2 greater than 2x-1 / 3 hold
13. Square of (x + 6x) + 18 (x + 6x) + 81 How to factorize
14. Calculate [the square of x plus 6x plus 9] × x plus the square of three thirds of x plus 9x plus 18
15. Square of 9x + square of 4Y = 31 to find 4x
16. 4X square - 4Y square - 4x + 4Y + 11 = 2
17. To solve the quadratic equation of one variable (1) x2 + 3x + 1 = 0 (2) x2-10x + 9 = 0 (3) (2x-1) 2 = (3x + 2) 2 (4) (x-1) (x + 2) = 2 (x + 2)
18. It is known that the root of the equation x + 9x + 4 = 0 is α β 1? 2. The quadratic equation with square root of α and square root of β is?
19. Y & # 178; + 4Y + 8 = y & # 178; + 4Y + 4 + 4 = (y + 2) & # 178; + 4 ≥ 4, so the minimum value of Y & # 178; + 4Y + 8 is the minimum value of M & # 178; + m + 4
20. Read the following questions and their solutions: find the minimum value of Y & # 178; + 4Y + 8 Solution: Y & # 178; + 4Y + 8 = y & # 178; + 4Y + 4 + 4 = (y + 2) &# 178; + 4 ≥ 4, so the minimum value of Y & # 178; + 4Y + 8 is 4. Follow the above solution process to find the minimum value of M & # 178; + m + 1