Post a New Question

9th grade Math

posted by .

(7n-1)/(8)=6

Okay,
I think I add 1 to both sides, so now I have..

(7n)/(8)=7

And then, to get n by itself I divide 7 into both sides, so now I have..

n/8=1

n=1 is what I get, but I'm not sure, could someone please check this for me?

  • 9th grade Math -

    No. Hang your head in shame :)
    Multiply both sides by 8
    7n-1=48
    add one to each side, then divide each side by 7

  • 9th grade Math -

    No ,
    first you multiply each side by 8 to get
    7n - 1= 48
    now add 1 to each side
    7n = 49
    divide both sides by 7
    n = 7

    check: in original
    ((7(7) -1 1)/6
    = (49-1)/6
    = 48/8
    = 6
    Check!!

  • 9th grade Math -

    Ohhh,
    thanks you very much,
    I wasn't sure which step I did first.:)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    can anyone help me with these 3 problems I am trying to check my daughters hoime work it has bee na few years. 1. The sum of n and twenty -two, multiplied by three, is 78 2. the product of z and 17 is less than or equal to the difference …
  2. algebra

    8-(3/8)k=-4 Now try to learn the basic steps of algebra. Subtract 8 from both sides. Why can we do this?
  3. math

    the radius of a circle when the numeric values of the circumference and area are equal. circumference = 2*pi*r area = pi*r^2 Set them equal and solve for r. thanks! i understand it now! 2*3.14*r=3.14*r^2 6.28*r=3.14*r^2 r=3.14 Is that …
  4. algebra--distributive

    how would you do this prob. negative4-(5y+6) = negative 7y+3 thanks. happy halloween I'm going to assume your problem is this: -4 - (5y + 6) = -7y + 3 If that's the case, distribute the negative over the terms in the parentheses first: …
  5. Math, rational inequalities

    Please can someone help me solve this problem?
  6. algebra

    I need a step by step explanation on how to add these two equations 2x+3y=1 5x+3y=16 Subtract the first equation from the second. (Subtract left and right sides separately). This gives you 3x = 15 Then divide both sides by 3. x = 5 …
  7. science

    rearrange this equation 2 make x the subect. 6y = 9 - 3x so first i add 3x to both sides which makes it 3x - 6y = 9 then do i divide both sides by 9 or wat?
  8. algebra

    how do I do this Solve for x. 3x – 2y = 6 Add 2y to both sides and then divide both sides by 3, to give you just "x' on the left side. so is this how i work it out 3x-2y=6 3x- 2y= 6 -2y 3x=6-2y x= 2 +2y No. Add 2y to both sides. …
  9. Pre Cal.--Check my work?

    Solve the system of equations: x - y - z = 2; x + 2y - 2z = 3; 3x - 2y - 4z = 5?
  10. Algebra

    Which of the following describes a correct method for solving the equation below?

More Similar Questions

Post a New Question