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
natali 33 [55]
3 years ago
5

: Resolver el sistema de ecuaciones por el método de reducción. -x + 3y = 6 x + y = 2

Mathematics
1 answer:
Digiron [165]3 years ago
6 0

Answer:

x=0\\y=2

Step-by-step explanation:

El método de reducción también llamado Suma y Resta, consiste en multiplicar una o ambas ecuaciones de tal manera que los coeficientes de una de las incógnitas sean iguales y de signo contrario, de tal forma que se eliminen al sumar las ecuaciones.

Nuestras ecuaciones son:

-x+3y=6\\x+y=2

En este caso podemos observar que x y -x son iguales y de signo contrario así que no tendremos que multiplicar y podemos sumar ambas ecuaciones.

Al sumarlas tenemos que:

4y=8\\y=2

Ahora sustituímos el valor que encontramos de y en la segunda ecuación para poder obtener el valor de x.

x+y=2\\x+2=2\\x=2-2\\x=0

Por lo tanto, x = 0 y y = 2

You might be interested in
Please help i don't understand
alexira [117]

Answer:

A

Step-by-step explanation:

The diagonals of a parallelogram bisect each other. Hence, the two shorter sides created on diagonal RT ("6x-7" and "x+28" ) are equal.

<em>We can set them equal and solve for x:</em>

<em>6x-7=x+28\\6x-x=28+7\\5x=35\\x=\frac{35}{5}\\x=7</em>

<em />

<em>So the side length of 6x -7 is:</em>

<em>6(7)-7 = 35</em>

<em>and the side length of x + 28 is:</em>

<em>7 + 28 = 35</em>

<em />

<em>THus, the diagonal RT = 35 + 35 = 70 units</em>

<em />

<em>Answer choice A is right.</em>

3 0
3 years ago
A pack of 6 batteries of the same type costs £2.79. By caculating the price, per battery, determine if this is better value. You
Fittoniya [83]

Answer:

£0.465. It is a better value.

Step-by-step explanation:

If a pack of 6 batteries costs £2.79, price of a battery can be calculated as shown;

6batteries = £2.79

1 battery = x

x = cost of a battery

6x = £2.79

x = £2.79/6

x = £0.465

Price per battery will be £0.465. This price is a better value since the price is lesser than the cost of the 6batteries (£2.79) in a pack.

6 0
3 years ago
Anyone 1 on 1 tutoring? ​
Sav [38]

Answer:

What do you need help on?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the area of the figure.<br> 14 m<br> 5 m<br> 16 m
Misha Larkins [42]

Answer:

Step-by-step explanation:

Seperate the shape into two. 16x2=32cm². 12x11=132cm²

So altogether it would = 164cm²

7 0
3 years ago
What is the slope of a line with points -5,7 and 1,1
KATRIN_1 [288]

Answer

6/-11

Step-by-step explanation:

use the slope formula m= \frac{y 2-y 1}{x 2-x 1}

then sub in numbers m=\frac{7-1}{-5-1}

now subtract numerator and the denominator

7-1= 6    and

-5-6=-11  this now looks like  \frac{6}{-11}    

8 0
2 years ago
Other questions:
  • Match the correct y=mx+b equation to the graph: <br><br> pls show work/explanation!
    6·1 answer
  • The side of a square is (4x - 2y). What is the perimeter of the square?
    9·2 answers
  • Determine whether the following sequence is geometric. If so, find the common ratio.
    13·1 answer
  • PLEASE HELP ASAP!!!!!!!
    12·1 answer
  • What is the value of w in the solution to the following system of linear equations ?
    15·2 answers
  • Which of the following inequalities have no solution over all real numbers? Check all that apply.
    10·1 answer
  • Which of the follow is true about it
    9·2 answers
  • A six-sided number cube is rolled 350 times and the results are recorded as follows: 58 ones, 63 twos, 52 threes, 61 fours, 60 f
    11·1 answer
  • Ofc my day is going bad its monday ugh :(
    12·2 answers
  • What is the absoulute value of -6
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!