Math

|3-7x|=-6
6w-1/5 -3w=12w-16/15
(X-3)^2-3=-5
(X+3)^2+4(x+3)-5=0

  1. 👍 0
  2. 👎 0
  3. 👁 111
  1. |3-7x|=-6
    trick question. || is never negative

    6w-1/5 -3w=12w-16/15
    w = 13/135

    (6w-1)/5 -3w=(12w-16)/15
    w = 1/3

    (x-3)^2-3=-5
    (x-3)^2 = -2
    No solution, since square are never negative

    (x+3)^2+4(x+3)-5=0
    If u=x+3 then you have
    u^2+4u-5=0
    (u+1)(u-5)=0
    So,
    x+3 = -1 or x+3 = 5
    x = -4 or 2

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    solve gauss jordan elimination 6w-2x-4y+2z=2 3w-3x-6y+z=-4 -12w+8x+21y-8z=8 -6w-10y+7z=43

  2. Algebra Combining like terms

    It is a multiple choice test. I have placed my after the question. I am not asking anyone to do it for me I simply would like someone to check my answers and maybe if their nice tell me what went wrong on the ones i get wrong.

  3. Math help please

    1. (9m + 6) + (–5m – 6) 4m + 12 14m + 12 14m – 12 4m 2. (3r^2 + 7r + 1) + (4r^2 – 8r – 2) 7r2 + 15r – 1 7r2 – r – 1 7r2 – 15r – 3 –r2 – r – 1 3. (6h + 1) – (9h + 4) –3h – 3 15h – 5 –3h + 3 –3h

  4. Math

    I'm in sixth grade and I need help on 3(12w+8)+17+9w

  1. Math

    How do I solve 4|8x-2|=8? And also 6w-1 over 5 -3w= 12w-16 over 15?

  2. math

    1. (9m + 6) + (–5m – 6) 4m + 12 14m + 12 14m – 12 4m 2. (3r^2 + 7r + 1) + (4r^2 – 8r – 2) 7r2 + 15r – 1 7r2 – r – 1 7r2 – 15r – 3 –r2 – r – 1 3. (6h + 1) – (9h + 4) –3h – 3 15h – 5 –3h + 3 –3h

  3. college math

    Evaluate the expression for the given values. 6v less 12w for v = 10 and w = 2

  4. Physics

    At a busy street corner, the sound level is 75dB. What is the intensity of sound there? (Take threshold of hearing Io=1.0×10^-12W/m²?

  1. Algebra

    -9+3w/11 divided by 25w-75/121 Do I need a Common denominator? Would it be 121 as 11x11 is 121? Do I then multiply the numeratos- -9+3w by 11 or do I do the addition of -9+3w for-12w?

  2. maths

    posted by kumar Thursday, March 15, 2018 at 11:51am. 4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it? maths - Reiny Thursday, March 15,

  3. mat117/algebra

    Rewrite the middle term as the sumof two terms and then factor completely. Please show me the formula and how to use it correctly. 12w^2 + 19w + 4 19w can be written as 16w + 3w. Those are the cross product terms when multiplying

  4. math

    A dvd box set includes 5 comedies and 3 westerns. Use c to represent the cost of each comedy and w to represent the cost of each western. Write and simplify an expression that represents the cost of 4 box sets. I came up with 4(5c

You can view more similar questions or ask a new question.