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
Free_Kalibri [48]
3 years ago
7

Solve the system of linear equations by substitution. 3x + y = -3 -2x + y =7

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
5 0

Answer:

(-2, 3)

Step-by-step explanation:

First solve one equation for y:

-2x+y=7\\y=7+2x

Now we can substitute this equation into the other one:

3x+7+2x=-3

Solve for x:

x=-2

Now substitute this value into the equation y=7+2x:

y=7+2x(-2)

Solve for y:

7=3

Now your solution is (-2,3)

Hope this helps! :)

aleksklad [387]3 years ago
4 0
Both equations are equal to 0
You might be interested in
The United States has a total area of 3,796,742 square miles.
Dvinal [7]

Answer:

4 * 10^6

Step-by-step explanation:

3,796,742 is about 4,000,000

4 * 10^? = 4,000,000

4 to 4,000,000 is an extra 6 zeroes

? = 6

4 * 10^6

4 0
3 years ago
Find the recursive formula.<br> 8, 12, 16, 20, ...
ArbitrLikvidat [17]
First term, a
1
​
=4
Second term, a
2
​
=8
Common difference, d=a
2
​
=a
1
​

d=8−4=4
∴ The common difference is 4
7 0
3 years ago
Caleb strung a 12 foot rope from the bottom of one fence post to the top of another. He measured the angle of elevation of the r
OLEGan [10]
The answer for this question is b because the angle of elevation of the rope as 35°
5 0
3 years ago
Need help asap pls and ty.
Anastasy [175]

Answer:

D

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Someone help pls -……
uysha [10]

Answer:

d) 35ft

e) 6 seconds

f) 250°

Step-by-step explanation:

If it makes one rotation (360°) in 36 seconds, then it turns 10° every second.

   36 secs = 360°

⇒ 1 sec = 360/36 = 10°

d)  After 9 seconds, it has turned:

9 x 10 = 90°

Therefore, it will be 15 + 20 = 35ft from the wall

e) 60° = 6 seconds

f) 25 seconds = 25 x 10 = 250°

8 0
2 years ago
Other questions:
  • How far is the Moon from the Sun x 500
    9·1 answer
  • How do I solve this? What do they mean
    13·1 answer
  • I have to answer this but I dont know how can you help me <br><br>5x-2= -7<br><br>what is x??
    7·2 answers
  • Allahuakbar eşedüennlee ilahe illallah ve eşşedüenle muhammeden abdühü ve resülüh
    10·1 answer
  • Is the sequence -2, -10, -50, -250 arithmetic?
    15·1 answer
  • Taryn is hosting a party at a restaurant the restaurant is charging her $140 to rent the space and $19 per guest if taryn wants
    10·1 answer
  • If 1 is 2, 2 is 5 5 is 10 thenejjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjefygfwcjhfwffffffffffffffff
    9·1 answer
  • What is the area of the triangle in square yards?
    14·1 answer
  • Chris bought 25.4 gallons of gasoline. There are approximately 3.8 liters in 1 gallon. How many liters of gasoline did Chris buy
    13·1 answer
  • Which two integers have a sum of 11 and a product of - 12 ?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!