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
faust18 [17]
3 years ago
13

−x − y = 1

Mathematics
2 answers:
Gemiola [76]3 years ago
5 0
<span>The system of linear equations

−x − y = 1
y = x + 3

can be solved in various ways.  This problem hints that you should graph both lines and find the coordinates of their point of intersection.

But we can also solve this system using substitution.  Note that y = x + 3.  We can subst. x + 3 for y in the 1st equation, as follows:

-x - (x+3) = 1.  This simplifies to -x -x - 3 = 1, or -2x = 4, or x = -2.

Since y = x + 3, subbing -2 for x produces y:  y = -2 + 3 = 1

Thus, the solution is (-2, 1). </span>
OLEGan [10]3 years ago
5 0
<span>−x − y = 1  so y = -x- 1
y = x + 3 
-x - 1 = x + 3
2x = -4
  x = -2

y = -2 + 3 = 1

(-2, 1)

answer
</span><span>(−2, 1)</span>
You might be interested in
Ayuda es para hoy :C
olga55 [171]

Answer:

busca cymath.com

Step-by-step explanl

4 0
3 years ago
Rochelle made three $25 withdrawals and then wrote a check for $100. If she started with $200 in her account, find the total amo
antoniya [11.8K]

$25. 25 x 3 is 75. Plus the 100 is 175. 200 - 175 is $25

4 0
3 years ago
A right triangle has one side that is 6 inches
ASHA 777 [7]

Answer:

31.4 inches

Step-by-step explanation:

36+144 = 180

sqrt(180) = 13.41

6 + 12 + 13.4

8 0
2 years ago
I need to know how to get the roots for example what is the root of 2 root 5
Harrizon [31]

Answer:

Square roots are when you multiply the same number by itself like for example, the square root of 5 is 25, because 5*5=25

Step-by-step explanation:

5 0
2 years ago
If 2(x + 3) + 7x = 3(x - 2) - 9, then x = ?
Fudgin [204]

Answer:

x=− 7 over 2 =−3.500

Hope this helps!

5 0
3 years ago
Read 2 more answers
Other questions:
  • Wich number does not represent a whole number
    5·1 answer
  • Brad and Wes are building a tree house. They cut a 12 and a half foot piece of wood into 5 of the same length pieces?How long is
    11·1 answer
  • Plz help me with this
    14·1 answer
  • What is the approximate volume of the cylinder. Use 3.14 for TT
    5·2 answers
  • What is the quotient of 18/1000?show your work
    14·2 answers
  • Do most students walk, bike, or bus to school?
    8·2 answers
  • After 200 feet of drilling on the first well, a soil test is taken. The probabilities of finding the particular type of soil ide
    14·1 answer
  • A six-pack of soda costs $3.36 How much does one soda cost?
    9·1 answer
  • PLEASE SOMEONE HELP ME
    8·2 answers
  • Jax is proving that the base angles of an isosceles triangle are congruent. He joins a line from
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!