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
IgorLugansk [536]
3 years ago
5

Solve the system of linear equations using either substitution or the elimination method.

Mathematics
1 answer:
lara31 [8.8K]3 years ago
4 0

Answer:

x = -1

y = 2

Step-by-step explanation:

x + y = 1

y = -x + 1

y = -x + 1  (Multiply this by -1)

y = 3x +5

-y = x - 1

y = 3x +5

0 = 4x + 4

4x = -4

x = -1

x + y = 1

-1 + y = 1

y = 2

You might be interested in
DOES ANYONE KNOW WHY OR HAS ANYONE EVER GOT 2000 POINTS TAKEN AWAY FROM THEM OFF THIS APP AND IT SAYS I ONLY ANSWERED ONE QUESTI
Sladkaya [172]

Answer:

someone told me about that happening to someone else

Step-by-step explanation:

im so sorry for u but i hope u have a good day and thanks for all the help u do for people through this app!!!

8 0
2 years ago
Evaluate 18-2(10+8)/6 squared and please explain how you did it
ICE Princess25 [194]

Answer: 12

Step-by-step explanation:

18−2(10+8)/6

=18−(2)(18)/6

=18−36/6

=18−6

=12

4 0
2 years ago
Consider functions f and g below.
Pani-rosa [81]

Answer:

D

Step-by-step explanation:

f(x) - g(x) = -9x^2 - 7x + 12 - (3x^2 - 4x - 15)  Remove the brackets

f(x) - g(x) = -9x^2 - 7x  + 12 - 3x^2 + 4x + 15

f(x) - g(x) = -9x^2 - 3x^2 - 7x + 4x + 12 + 15

f(x) - g(x) = -12x^2- 3x + 27

Answer D

3 0
3 years ago
Read 2 more answers
What are the solutions of the equation ( X -25 )^ 2 equals 36
fgiga [73]

Answer:

x = 31, x = 19

Step-by-step explanation:

(x-25)^2=36\\\sqrt{(x-25)^2}=\sqrt{36}\\x-25=6 or -6\\\\x-25=6\\x=31\\\\x-25=-6\\x=19

5 0
3 years ago
Which choice is equivalent to the expression below?
Ivan

Answer:

D

Step-by-step explanation:

.......................

3 0
3 years ago
Read 2 more answers
Other questions:
  • Square $BCFE$ is inscribed in right triangle $AGD$, as shown below. If $AB = 28$ units and $CD = 58$ units, what is the area of
    9·1 answer
  • Over the course of a year,a tractor-trailer commutes 160,000 miles across America.Assuming a trucker changes his tires every 40,
    8·2 answers
  • Mr=120 and ms=110 find mt
    15·1 answer
  • 2ம<br>P-* =+ எனின் P++ 0gm​
    13·1 answer
  • Samuel plans to install a fence around the perimeter of his yard. His yard is shaped like a square and has an area of 40,000 squ
    12·1 answer
  • Find the missing value using the given slope.<br> (-3,y) (9,-2); m=1/3
    6·1 answer
  • What is 44,000,000 ft equal to in yards
    12·1 answer
  • Simplify the following expression:
    11·2 answers
  • Brian invests £1900 into his bank account.
    9·1 answer
  • Mark wants to find the area of a circle with a diameter of 8 cm. Which expressions can he use to find the area of the circle in
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!