If 2x + 3Y + Z = 6, 4x + 3Y + 5Z = 8, then x + y + Z=

x+y+z=(6+8)/6=7/3

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1. Mathematical problem: given 4x = 3Y + 5Z, 2x + y = Z, find the value of X: Y: Z
2. To solve the equations: X − y − z = 0x + y − 3Z = 42x + 3Y − 5Z = 14
3. 2 x power = 3 y power = 5 Z power compare 2x 3Y 5Z size
4. If the absolute value of X is equal to 2 and the absolute value of Y is equal to 3, then the absolute value of X + y is ()
5. If the absolute value of X-2 plus the absolute value of y plus 3 plus the absolute value of Z-5 equals 0 Calculation: (1) the value of X, y, Z: (2) the absolute value of x plus the absolute value of y plus the absolute value of Z
6. The range of the absolute value of y = x multiplied by 2 minus x?
7. Y = the absolute value of x ^ 2-2x-3. Find the definition field and value field. How to spend drawing
8. If x = 1, then
9. 1. If the absolute value of 4-x + the absolute value of Y + 6 = 0, then x of y = [
10. What is the set of solutions where the absolute value of X is greater than 1 / 2 of X?
11. Given X: Y: z = 4:5:7, find the value of 2x + 3Y + Z / 5Z, the square of X + the square of Y / the square of Y - the square of X
12. Solve ternary linear equations. Please help! X + y + Z = 6,3x-y-4z = - 11,2x + 3y-2x = 2
13. To solve the linear equation of three variables: 1. X-5y-3z = - 4 3x + 5Y + Z = - 2 x-3y-5z = - 6
14. (similar) given 2x = 3Y = 5Z, then x is better than y than Z?
15. Given that 2 ^ x = 3 ^ y = 5 ^ Z and X, y, Z are positive numbers, the size relation of 2x, 3Y, 5Y is?
16. If X: 2 = Y: 3 = Z: 4 and X + y + Z = 18, then 2x + 3Y + 4Z=
17. 3 (the power of 2x minus the power of Y) - 2 (the power of 3Y minus the power of 2x) is equal to? (the second power of a + the second power of 2Ab + the second power of B) - (the second power of a - the second power of 2Ab + the second power of B) is equal to? First simplify and then evaluate 1 / 2x-2 (the second power of X-1 / 3Y) + (- 3 / 2x + the second power of 1 / 3Y), where x = 2 / 3, y is equal to - 2, given that a = the second power of X - 5x, B is equal to the second power of X - 11x + 6, calculate the value of a-2b to the second power of 2x y (only x is the second power), - 2x y (only y is the second power), 3x y (only x is the second power), -XY, find out two similar terms from the four formulas, and merge the two similar terms,
18. How to solve that 2x plus 5Y equals negative 3, 2x minus 3Y equals 5
19. What is the value of the algebraic expression x minus 3Y if x plus 2, y equals minus 7, 2x minus y equals 2
20. The more, the better. Please note the meaning of the symbol Come on, online, etc Thanks, but please give me an answer