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
dybincka [34]
3 years ago
14

Solve the following system of equations below x-2y=3 2x-3y=9

Mathematics
2 answers:
Artyom0805 [142]3 years ago
7 0

x - 2y = 3 \\ 2x - 3y = 9 \\  \\  - 2x + 4y =  - 12 \\  \: 2x - 3y = 9 \\  \\ y =  - 3 \\ 2x + 9 = 9 \\ 2x = 0 \\ x = 0 \\ x = 0 \:  \: y =  - 3
Eva8 [605]3 years ago
7 0

Answer:

(9, 3)

Step-by-step explanation:

I'd strongly suggest that you write these two equations one above the other:

x-2y=3

2x-3y=9

Let's eliminate x by addition / subtraction:  Multiply the first equation by -2 to obtain -2x in the first row over +2x in the second row:

-2x + 4y = -6

2x -  3y =  9

--------------------

           y = 3

Now subst. 3 for y in the first equation:  x - 2y = 3 becomes:

x - 2(3) = 3, or

x = 6 + 3  =  9

The solution is (9, 3).

You might be interested in
What of the following functions is graphed below
leva [86]
The correct answer is C
5 0
2 years ago
Simplify the imaginary number sqr -75
m_a_m_a [10]

Answer:

5i\sqrt{3}

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{b} ⇔ \sqrt{ab}

and \sqrt{-1} = i

Given

\sqrt{-75}

= \sqrt{25(3)(-1)}

= \sqrt{25}  × \sqrt{3} × \sqrt{-1}

= 5 × \sqrt{3} × i

= 5i\sqrt{3}

3 0
3 years ago
Please help:(( no links please!!
Usimov [2.4K]

Answer:

A :

B : Trapezius!

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

6 0
2 years ago
What's the answer to this question
Cerrena [4.2K]
10.1 x 8 - 6 = 80.8 - 6 = 74.8
u just had to substitute the variables
3 0
3 years ago
What is y=7/3x+5?<br> x=-3
andrew11 [14]
Hello!

Ok so we have y= 7/3x + 5 and initial condition of x=-3 so we just plug -3 in for x and chug along at this point! :)

y=(7/3)*(-3/1)+5= -7+5 = -2

Hope this helps! Any questions please just ask! Thank you!!
7 0
3 years ago
Other questions:
  • Simplify the ratio 9/12
    14·2 answers
  • Perform the indicated operation. <br><br> (2a2 - 8)(4a4 + 16a2 + 64)
    13·1 answer
  • Which of the following has a positive value? sec (2pi/3) tan (2pi/3) cos (2pi/3) csc (2pi/3)
    14·1 answer
  • Find the slope of the line that passes through the points (-19, -4) and (13, -17).​
    14·2 answers
  • Find the x= to the answer
    15·1 answer
  • 1) Jared got 18 out of 25 questions correct on a quiz. What grade did he get?​
    7·1 answer
  • Which expression represents 2 more than the product 5 and 4.
    15·2 answers
  • Well how brainly he wants to get my money with his royale pass from the fornite, I don't know if I'm going to buy it (and if I'm
    13·1 answer
  • 6. Which equation has infinite solutions?
    10·1 answer
  • Lnx=-3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!