math need help please

posted by .

-x/2 = 9
The solution is x = what

  • math need help please -

    multiply both sides by -2

  • math need help please -

    thank you

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math again

    How does "How many gallons of a 12% indicator solution must be mixed with a 20% indicator solution to get 10 gal of a 14% solution?
  2. biology

    if a solution has a pH of 4 mix to a solution that has a pH of 9 what will be the pH of the mixed solution?
  3. calculus

    Sorry to post this again, but I am still unable to understand it and need help. Please help.1) Using 3(x-3)(x^2-6x+23)^2 as the answer to differentiating f(x)=(x^2-6x+23)^3/2, which I have been able to do, I need to find the general …
  4. math-please help,need quickly

    solve the polynomial inequality and graph the solution set on a real num ber line. express the solution set in interval notation x^3+x^2+64x+64>0 please show work
  5. chemistry

    I'd like to do a titration test, I've got a sulphuric acid solution @ 1M (2N) but I need one @ 0.12N. How many ml of the 1M (2N) solution do I need to add to distilled water to make up 100ml please?
  6. Math

    1. In the lab, Deon has two solutions that contain alcohol and is mixing them with each other. Solution A is 40% alcohol and Solution B is 12% alcohol. He uses 1000 milliliters of Solution A. How many milliliters of Solution B does …
  7. Math

    Hi I really need help. I don't know even how to figure these two questions out so if you could help me, please. Is (–4, 10) a solution to the equation 10 – 5x = y?
  8. Solution Making

    Suppose you start with a 5X solution A, and you want a final volume of 10ul of 1X solution. How much Solution A do you need?
  9. Math

    A pharmacy technician is making a 50% solution, how many mL of a 38% stock solution should be added to one pint of a 82% solution?
  10. Math

    Pharmacy has 325mL of a 40% solution. 120mL of sterile water is added to this solution to decrease the concentration. How many grams of active ingredient would be in the diluted solution?

More Similar Questions