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
ella [17]
3 years ago
5

If -2x+3=7 and 3x+1= 5+y

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer: x = -2, y = -10

Step-by-step explanation:

solve for x first in the equation -2x+3=7

-2x+3=7

-2x = 4

x = -2

now plug that x value into the other equation so we can find y

3x+1 = 5+y

3(-2)+1 = 5+y

-6+1 = 5+y

-5=5+y

-10 = y

maria [59]3 years ago
5 0

Step-by-step explanation:

-2X+3=7

-2X= 7--3

X=-2

2nd equation

3(-2) +1= 5+y

y= -10

You might be interested in
Combine the like terms to create an equivalent expression:<br> −3x-6+(-1)
asambeis [7]

Answer:

-3x - 7

Step-by-step explanation:

-3x - 6 - 1 = -3x - 7

3 0
3 years ago
Read 2 more answers
-5x-(-7-4x)=-2(3x-4) true?
qwelly [4]

Answer:

x=1/5

Step-by-step explanation:

-5x-(-7-4x)=-2(3x-4)

-5x+7+4x=-6x+8

-5x+4x+7=-6x+8

-x+7=-6x+8

-x-(-6x)+7=8

-x+6x+7=8

5x+7=8

5x=8-7

5x=1

x=1/5

8 0
3 years ago
What is the ordered pair after this point is reflected across the y-axis? 4,2
Zepler [3.9K]

Answer:

-4,2

Step-by-step explanation:

a reflection across the y axis means the y values stay the same and the x values change sign

8 0
3 years ago
Ez points lol...............
love history [14]

Answer:

It's D

Step-by-step explanation:

Stay frosty

3 0
3 years ago
Read 2 more answers
Evaluate the given integral by changing to polar coordinates. sin(x2 y2) dA R , where R is the region in the first quadrant betw
alexira [117]

Answer:

I = 1.47001

Step-by-step explanation:

we have the function

f(x,y)=sin(x^2y^2)\\

In polar coordinates we have

x=rcos\theta\\y=rsin\theta

and dA is given by

dA=rdrd\theta

Hence, the integral that we have to solve is

I=\int \limt_2^4 \int \limit_0^{\pi /2}sin(r^4cos^2\theta sin^2\theta)rdrd\theta

This integral can be solved in a convenient program of your choice (it is very difficult to solve in an analytical way, I use Wolfram Alpha on line)

I = 1.47001

Hope this helps!!!

7 0
3 years ago
Other questions:
  • Match each set of vertices with the type of quadrilateral they form.
    6·1 answer
  • Canada has a population that is about 1/10 as large as the united states if canadas population is about 32 million how many peop
    10·1 answer
  • Which of the tables represents a function?
    11·1 answer
  • The ratio of the numerator to the denominator of a certain fraction is three to five. If two is added to the numerator and
    6·1 answer
  • Can someone please help me:)
    7·1 answer
  • 1)Se considera un cerc si un punct oarecare. Expresiile punct interior cercului, punct pe cerc sau punct exterior textului descr
    13·1 answer
  • What is the value of c in the equation below?
    13·1 answer
  • Which equation can be used to solve for the rate, r, for Sam to change all the light bulbs in the office building by himself?
    8·2 answers
  • Find the value of x and y is (3x_6) (12,y-1)​
    5·2 answers
  • If A={4,7,10,13,17} and B={3,5,7,9}, then which of the following statements is true
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!