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
BARSIC [14]
2 years ago
14

What is the simultanous equation of 2x+y=–5 3x+2y=–8 equation Using the Substitution method​

Mathematics
1 answer:
Artyom0805 [142]2 years ago
8 0

Answer: Equation form: x=-2,y=-1

Point form: (-2, -1)

Step-by-step explanation:

y=-\frac{3x}{2} -4

y=-2x-5

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Solve by Substitution ---> 2x+y=-5 3x+2y=-8

You might be interested in
Which of the following is a linear equation<br>x+y-2<br>2x+5=11<br>15<br><br>​
skelet666 [1.2K]

Answer:

x + y = 2

y = 2 - x

so it is a linear equation.

2x + 5 = 11

2x = 11 - 5

2x = 6

x = 3

it is not a function because for just one <u>x</u> we have many <u>y</u>

5 0
3 years ago
Can I get some help on this I have so many assignments to do and I just want to go to sleep
AfilCa [17]
Hi! It’s me from your other post! Here’s my work for you! It’s been awhile since I’ve done this stuff so I’m really sorry if I get you a bad grade! I just wanted to help out:))

7 0
3 years ago
5627 times an unknown variable is 41
vodomira [7]
Let the unknown variable be x.
5627x=41
x=41/5627
3 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Ba%5E2%20-2a-b%5E2%3D0%7D%20%5Catop%20%7B2b%2B2ab%3D0%7D%7D%20%5Cright
oksian1 [2.3K]

Given :-

  • a² - 2a - b² = 0
  • 2b + 2ab = 0

To find :-

  • Value of a and b .

Solution :-

<u>Taking</u><u> </u><u>second</u><u> </u><u>equation</u><u>:</u><u>-</u>

  • 2b + 2ab = 0
  • 2b ( 1 + a ) = 0
  • 2b = 0 or (1+a) = 0
  • b = 0 , a = -1

<u>Substitute</u><u> </u><u>in </u><u>first </u><u>equation</u><u> </u><u>:</u><u>-</u><u> </u>

  • a² - 2a - b² = 0

<u>When </u><u>b </u><u>=</u><u> </u><u>0</u><u> </u><u>,</u>

  • a² - 2a - 0² = 0
  • a² - a = 0
  • a( a -1) =0
  • a = 0 , 1

<u>When </u><u>a </u><u>=</u><u> </u><u>-</u><u>1</u><u> </u><u>,</u>

  • (-1)² - 2*(-1) - b² = 0
  • 1 + 2 - b² = 0
  • b² = 3
  • b = ±√3

<u>Answer </u><u>:</u><u>-</u><u> </u>

  • a = 0,1 ; b = 0
  • a = -1 , b = ±√3
8 0
3 years ago
Ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo
Lyrx [107]

Answer:

its 2 1/4

Step-by-step explanation:

1/2x2 is 1 whole. 3/4 plus 1/4 is 2 wholes. plus 1/4 which is 2 1/4.

7 0
3 years ago
Read 2 more answers
Other questions:
  • Should this answer be a fraction or a whole number?
    14·1 answer
  • 7. The claim that started this investigation was that students majoring in engineering are more likely to be in the marching ban
    5·1 answer
  • What is 40% of 400<br> Show work
    5·2 answers
  • Solve for . 5w-26=-4(w-7) Simplify your answer as much as possible. PLZ HELP
    14·1 answer
  • over the past 5 weeks the average daily temperature in Wellington has dropped degrees Fahrenheit write and evaluate the an expre
    11·1 answer
  • Convert 25% to a decimal.
    14·2 answers
  • Ivanna paid $11.88 for a 2.38-pound bag of shrimp at one store. The following week, she paid $26.47 for a 5.08-pound bag at anot
    13·2 answers
  • Answer choices <br>A. -4<br>B. 5.8<br>C.4<br>D.8​
    12·1 answer
  • Why does my app keep saying I’m not a member even tho it ends on 10/15/21
    11·1 answer
  • Mhanifa or Anyone Answer this PLZZZZZZ
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!