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
alina1380 [7]
3 years ago
13

Plz help ty :)))))))))

Mathematics
1 answer:
Neporo4naja [7]3 years ago
3 0
3x - 3y = -12      ------------- (1)
7x + 2y = -19     --------------(2)

(1) x 2 : 6x - 6y = - 24       ----------- (1a)
(2) x 3 : 21x + 6y = -57     ----------- (2a)

(1a) + (2a) : 27x =  - 81
                        x = - 3

Sub x = -3 into (1) :  3(-3) - 3y = - 12 
                                               y = - 12  + 9
                                               y = - 3

Answer( -3, -3)


You might be interested in
Verify seca(1-sina)(seca+tana)=1
beks73 [17]
Seca(1-sina)(seca+tana)=1
Left hand side
=(1-sina) (seca +tana) / cosa
=seca +tana - sinaseca - sinatan / cosa
=seca + tana -tana -(sin^2a/cosa) / cosa
=(1/cosa - sin^2a/cosa) / cosa
= (1-sin^2a / cosa) / cosa
= (1-sin^2a)/ (cos^2a)
=1 (verified)
5 0
3 years ago
Read 2 more answers
Experimental probability
Sedaia [141]
5, 9, 11, 12, 11. Each comma represents a new question
7 0
3 years ago
What are x and y? 4x-2y=7<br>x+2y=3
suter [353]

Answer:

i believe the correct answer is x=2, and y=2


3 0
3 years ago
Read 2 more answers
What is the minnimum value of the equation y=2x^2+5.
Veseljchak [2.6K]
The correct answer is 0.775255128608411.


8 0
3 years ago
Someone pls help what would this slope be ?
tekilochka [14]

Answer:

-3/5x

Step-by-step explanation:

It is a negative slope and use rise over run

5 0
2 years ago
Other questions:
  • Round to the nearest hundredth (Geometric Series problem)
    11·1 answer
  • Snow is melting from the sun's rays. if its hight changes by -3/17 every hour, how much change will there be in 6 hours?
    5·1 answer
  • 3× - 4y =65 when u =4
    14·2 answers
  • Which graph shows a system of equations with no solutions? On a coordinate plane, the graphs of 2 circles are shown. Both circle
    10·2 answers
  • Hey now please just anser if itnus a try i will still give 5 stars. THE Question is what is the most easy way to SOLVE THE NINES
    14·1 answer
  • Siri round each number to the place of the underlined digit 7.158 The underlined number is five
    5·1 answer
  • Karissa says that to represent the expression - 7 - (- 9) on number line, she should start at 7 and move units to the IN correct
    9·1 answer
  • What are the dimensions of the base of the pyramid?
    11·1 answer
  • Please help. no links
    5·1 answer
  • Write the following using algebraic notation, using the letter x for any
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!