1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sweet [91]
3 years ago
6

Solve for x .-2z-xy=z+7

Mathematics
2 answers:
vovangra [49]3 years ago
7 0

-2z - xy = z + 7

You are solving for x. Note the equal sign. What you do to one side, you do to the other. Isolate the x.

First, add 2z to both sides

-2z (+2z) - xy = z + 7 (+2z)

Simplify. Combine like terms

-xy = z + 2z + 7

-xy = 3z + 7

Completely isolate the x. Divide -y from both sides

(-xy)/-y = (3z + 7)/-y

x = (3z + 7)/-y

Simplify

z = (3z + 7)/(-y) is your answer

hope this helps

aliina [53]3 years ago
4 0

-2z-xy=z+7\ \ \ \ |+2z\\\\-xy=3z+7\ \ \ \ |:(-y)\neq0\\\\x=\dfrac{3z+7}{-y}\\\\\boxed{x=-\dfrac{3z+7}{y}}

You might be interested in
Which equation show you how to find 16-9
Pavel [41]
16-9=7
I am pretty sure that is what yo are asking for right?
6 0
3 years ago
A band expects to put 15 songs on their next CD. The band writes and records ​60% more songs than they expect to put on the CD.
scoray [572]

Answer: 6

Step-by-step explanation:

From the question, we are informed that a band expects to put 15 songs on their next CD and that the band writes and records ​60% more songs than they expect to put on the CD. Therefore, the total songs will be:

= 15 + (60% × 15)

= 15 + (0.6 × 15)

= 15 + 9

= 24 songs.

During the editing​ process, ​75% of the songs are removed. The total number of songs that will be there on the final​ CD will be:

= 24 - (75% × 24)

= 24 - (0.75 × 24)

= 24 - 18

= 6

6 songs will be there on the final CD.

3 0
2 years ago
Read 2 more answers
A dog owner is told by the veterinarian that his dog, Max, is overweight and needs to lose 4 to 5 pounds in order to live a heal
hodyreva [135]
This is a linear function, of the kind y = mx + b

where x is the number of visit,  b is the weight when x = 0, and m is the predicted change of weight for every visit.

m = - 4 ounces / visit, which must be converted to pounds (the negative sign indicates that the change is a decrease)

1 lb = 16 ounces = 4 ounces = 0.25 lb

Then m = - 0.25 lb / visit.

Now, for x = 1, y = 126 => 126 = - 0.25(1) + b => b = 126 + 0.25 = 126.25

Then the function is y = 126.25 - 0.25x

Now round to the nearest tenth:

y = 126.3 - 0.3x

Answer: y = 126.3 - 0.3x

 

6 0
3 years ago
Tara and Jody's bedrooms are shaped like rectangles. Tara's bedroom is 9 ft long and 8 ft wide. Jody's bedroom is 7ft long and 1
horrorfan [7]
Tara's Bedroom: A = lw
                           A =  (9)(8)
                           A = 72 ft²

Jody's Bedroom: A = lw
                           A = (7)(10)
                          A = 70 ft²

Tara's bedroom has the greater area than Jody's bedroom.
5 0
3 years ago
7/3(x+9/28) what is the answer
natulia [17]

Answer:

x= - 9/28 ± √60/7

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
Other questions:
  • Drag statements and reasons to each row to show why the slope of the line between
    11·1 answer
  • josh mowed one-third of a 2000-ft squared in 18 minutes. at the same rate how many minutes would it take him to ow a 4200-ft squ
    11·1 answer
  • Which of the following statements are true about the equation below?
    6·2 answers
  • If a and b are both positive numbers and a values?
    14·1 answer
  • 2) Eighty students were surveyed as they left the cafeteria after lunch. The following were
    15·1 answer
  • Calculate the product below and give your answer in scientific notation .2x10^6 x 0.0009
    15·1 answer
  • ABC ∆ where Angle A =90° , AB = 12 m, AC = 9 m . Find BC ?
    15·1 answer
  • Can somebody help me?
    6·2 answers
  • The question is in the picture ​
    14·2 answers
  • Find the volume of the cylinder. Use 3.14 for π. Round your answer to the nearest tenth.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!