If 2x = 15, 4Y = 3, then the value of 2x-2y is______ .
2x-3y = 2x △ 2 = 15 △ 3 = 5, so the answer is: 5
RELATED INFORMATIONS
- 1. If the n-th power of - 2mx is multiplied by the quadratic power of Y, which is the quintic monomial of X and y, we can find the value of M and n Why n + 2 = 5?
- 2. If the m-th power of the square of the monomial formula 3x multiplied by Y is the same as the 3-th power of the n-th power of 1 / 3 multiplied by X multiplied by Y, then M-N =?
- 3. If 2x + y = 1, find the minimum value of x power of 4 + y power of 2
- 4. If the 2n-3 power + 1 = 0 of equation 8x is a linear equation with one variable, then the value of n is If the 2n-3 power of equation 8x + 1 = 0 Is a linear equation of one variable, then the value of n is
- 5. If the value of polynomial 2mx2-x2 + 5x + 8 - (7x2-3y + 5x) is independent of X, the value of M2 - [2M2 - (5m-4) + M] is obtained
- 6. If the value of polynomial (2mx & # 178; - X & # 178; = 5x + 8) - (5x & # 178; - 3Y = 5x) has nothing to do with the value of X, find the value of M & # 179; - (2m & # 178; - (5m-4) + m)
- 7. Quarter x square + XY + y square
- 8. (1 / 2)+____ )Square of x = one fourth of X + one third of XY + one ninth of Y
- 9. Square of (1 / 4) x + (1 / 3) XY + (1 / 9) y
- 10. (1) , 1-xy + 4 / 4 x square y (2), 38.9-2 × 38.9 × 48.9 + 48.9 square (3), 34 square + 34 × 32 + 16 square
- 11. (2 power of Y) + (3 power of Y) - 5 power of 2Y · y How? Be more specific
- 12. Square two of a + 2A (B + C) + (B + C) quadratic
- 13. 6 (the square of a - 2A + 3)
- 14. 2 (2a + a) - 11 (2a + a) - 6 It should be 2 (square of 2A + a) - 11 (square of 2A + a) - 6
- 15. Then the value of (A-3) (a + 6) (a + 5) (A-4) + 20 is
- 16. (square of a-2a) (square of a-2a-6) + 9
- 17. (A-3) square - (2a-6) = ()
- 18. Calculation (2a + B-C) (2a + B + C)
- 19. Calculation: (- C / 2A square B)
- 20. How to calculate the negative square of (2a + b) Please, the teacher is really, in the first volume when teaching the second volume, do not know