![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
How to solve 3x: (5x + 2) = 4:7? Write down the process step by step. Thank you
Cross multiply
4 * (5x + 2) = 3x * 7 (* stands for multiplication sign.)
20x+8=21x
8=21x-20x
8=x
RELATED INFORMATIONS
- 1. How to solve (5x-90) * 3 = (3x + 90) * 2
- 2. How to solve 5x / 2 + 3x / 2 = 6
- 3. How to solve 5x = 3x + 6 You can't change it into an equation
- 4. How to solve (0.5x + 7) * 1.6 = 1.2 * 3x
- 5. Solving the equation: 3 / 5x + 2 / 3 = 2 / 3x + 3 / 5
- 6. If a = (3x ^ 2) x 5x 2, B = (4x ^ 2) x 5x 10 2, the size of a and B
- 7. Solve the equation x-3 / 5x = 1 / 3x + 10
- 8. How to solve the equation (1) 1-1 / 3x = 4 (2) 5x + 1 / 6 = x-3x-1 / 5
- 9. Two unequal solutions of 3x & # 178; - 7x-10 ≤ 0 and 2x & # 178; - 5x + 2 > 0
- 10. -3x + 0.5x = 10
- 11. 5x=3x+8
- 12. The solution equation: (1) 3x + 4 = 5x-8 (2) 2x-5 (4-x) = 3 (X-2)
- 13. 3X+8=5x-6 Solve the equation (in more detail)
- 14. 3X-5X=-8+10
- 15. (13x+8)/3=5x-1 x-60=2[(3561-x)+100]+1 (x+9)+12=2[(x-9)-12]
- 16. 3.5X-3.6+6.4=9.8 It's an equation
- 17. 8 / 13X + 4 / 3-8 / 5x = 9 / 8 (solving equation)
- 18. The range of the function y = sin (x + π 6) (0 ≤ x ≤ π 2) is______ ．
- 19. Ice turns into water, melting or melting
- 20. Is the function y = xcosx bounded in (- ∞, + ∞)? Is it infinite when x → + ∞? Why Because when a, M > 0 and x > 0 are written back, there will always be x0 ∈ (x, + ∞), so that cosx0 = 0 and y = x0cosx0 = 0