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
Papessa [141]
2 years ago
8

What is the solution for the following system of equations? 2x + y = 7 x - 2y = 6

Mathematics
1 answer:
dmitriy555 [2]2 years ago
3 0

I got you bro!

Answer:

{x,y} = {4-1}

You might be wondering how I got this, well here are the steps:

System of Linear Equations entered :

  [1]    2x + y = 7

  [2]    x - 2y = 6

Graphic Representation of the Equations :

   y + 2x = 7        -2y + x = 6  

 

Solve by Substitution :

// Solve equation [2] for the variable  x  

 [2]    x = 2y + 6

// Plug this in for variable  x  in equation [1]

  [1]    2•(2y+6) + y = 7

  [1]    5y = -5

// Solve equation [1] for the variable  y  

  [1]    5y = - 5

  [1]    y = - 1

// By now we know this much :

   x = 2y+6

   y = -1

// Use the  y  value to solve for  x  

   x = 2(-1)+6 = 4

Solution :

{x,y} = {4,-1}

I hope this has helped you and have a wonderful day!

You might be interested in
Please hep me fast!!!!!!!!!!
FromTheMoon [43]

Answer:

y = -1/2x

Step-by-step explanation:

The y - intercept is 0, because the point where the line touches the y - axis is y - value of 0

The slope is -1/2 because as it rises by -10, it runs by 20

Slope is rise/run which is -10/20 which simplifies to -1/2

y = mx + b

b = y - intercept

m = slope

y = -1/2x + 0 or y = -1/2x

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

6 0
2 years ago
Read 2 more answers
Use the Angle Addition Postulate to find the measure of the unknown angle.
tensa zangetsu [6.8K]

Answer:

Hey there!

Step-by-step explanation:

This is ur answer....

<h2><em>60 + 120 = 180</em></h2>

<h2><em>DEF = 180</em></h2>

Hope it helps!

Brainliest pls!

Follow me!

3 0
1 year ago
4.
NemiM [27]

Answer:

i belive the answer is B

Step-by-step explanation:

6 0
3 years ago
Rewrite the following equation in slope-intercept form.
ahrayia [7]
Pretty Sure it’s y=x+(-.8) haven’t done algebra in a bit. Sorry if wrong. :/
8 0
2 years ago
What is the value of the expression below? <br><br> 675 ÷ 3 - (15 - 12)² <br><br> PLZ HELP-
vodomira [7]

Answer:

675 ÷ 3 - ( 225 - 144)

675 ÷ 3 - (81)

225 - 81

144

I hope it's helps you

5 0
2 years ago
Other questions:
  • Can someone PLEASE hwlp me??
    15·2 answers
  • The graph of a linear equation passes through three of these points: (0,5), (2, 2), (3, 1), and (4.-1).
    6·1 answer
  • Debra has ridden 57 miles of a bike course the course is 60 miles long what percentage of the course has Debra ridden so far
    12·2 answers
  • In a library where the ratio of men to women is 1 to 1, _____ of the total members are men
    7·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B5%7D%20%20%7Bx%7D%5E%7B2%7D%20%20-%202%20%3D%20%20-%205" id="TexFormula1"
    7·1 answer
  • An office building casts a 90 foot shadow. At the same time of day, a 5 foot woman standing near the building casts an 8 foot sh
    7·2 answers
  • n a survey of 2,300 people who owned a certain type of​ car, 1,265 said they would buy that type of car again. What percent of t
    11·1 answer
  • What is 365 x 8=???????
    5·1 answer
  • Based on the article, which of the following is MOST important to all economic systems?
    6·1 answer
  • What is the value of t?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!