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
Harrizon [31]
2 years ago
15

Y = -3 x - 5y = 7 I have the answer I don’t know how to show my work

Mathematics
2 answers:
Leno4ka [110]2 years ago
8 0

Answer:

Step-by-step explanation:

To use substitution in this problem, you find the Y which ='s -3. That we have clear. Now, the second equation becomes x - 5(-3) =7. A negative times a negative is a positive, so 15. Now, we have x + 15 = 7. Subtract 15 from 7 to get x = -8. Your coordinates, or your answer, will be (-8, -3)

Free_Kalibri [48]2 years ago
4 0

Answer:

  (x, y) = (-8, -3)

Step-by-step explanation:

"Show your work" means write down the work you did.

Very likely, you put -3 where y is in the second equation. That is what "substitution" means.

  x -5(-3) = 7

  x +15 = 7 . . . simplify

  x = -8 . . . . . subtract 15 from both sides

The solution to this system is ...

  (x, y) = (-8, -3)

You might be interested in
The work of a student to solve a set of equations is shown:
lesantik [10]

<span>If you would like to know in which step did the student first make an error, you can find this using the following steps:

y = 4 - 2z
4y = 2 - 4z
________________
-4(y) = -4(4 - 2z)
</span>4y = 2 - 4z<span>
________________
-4y = -16 + 8z ... Step 2
</span><span>4y = 2 - 4z</span><span>
________________
0 = -16 + 8z + 2 - 4z</span>

<span>16 - 2 = 4z</span>

<span>14 = 4z</span>

<span>z = 14/4 = 7/2</span>

<span>
The correct result would be: Student made an error in Step 2.</span>

5 0
3 years ago
Read 2 more answers
What is the slope of a line that goes through the points (2, 5) and (8, 6) ?
jenyasd209 [6]

Answer:

m = 1 / 6

Step-by-step explanation:

Use this formula y2 - y1 / x2 -x1 to find the slope.

6 - 5 / 8 -2 = 1/6

8 0
3 years ago
Help me please i need help asap
Shalnov [3]

Answer:

Step-by-step explanation:

7 0
2 years ago
5. How many minutes does it<br> take to get from 10.26 to 10.38?
Orlov [11]
Answer is 12 trust me
6 0
3 years ago
You are asked to draw a triangle with side lengths of 10 inches, 7 inches, and 2 inches. How many triangles like this can you dr
Inessa05 [86]
Well, if you say it's A...  But that does make sense.  Using the triangle inequality theorem, there is only one triangle you can make from that. 
6 0
3 years ago
Read 2 more answers
Other questions:
  • B/5&gt;-1<br> Solve the inequality. Graph and check the solution.
    6·1 answer
  • Find the sum of the first 50 multiples of 6.
    12·1 answer
  • A blueprint is drawn using a scale of 2 mm over 25 ft. What length is represented by 1 mm?
    6·1 answer
  • Bottles of sparkling water usually cost $1.69 each. This week they are in sale for 4 for $5. You bought one last week and one th
    12·1 answer
  • Hello This is pretty Easy But i forgot the basics
    15·2 answers
  • THIS IS WORTH 11 POINTS For the function y = f(x), what is the ordered pair for the point on the graph when x = 2m + 3? (3 point
    11·1 answer
  • Which of the following is the solution to the inequality below?
    14·1 answer
  • The difference if a number and 6 is -11. What is the number?
    12·1 answer
  • Someone please help me
    13·1 answer
  • Solve for y please! <br> 7x + 8y = -12
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!