daedae78947 daedae78947
  • 03-07-2019
  • Mathematics
contestada

Find the solution x-2y=-26 x-y=-2

Respuesta :

gmany
gmany gmany
  • 07-07-2019

Answer:

x = 22 and y = 24

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}x-2y=-26\\x-y=-2&\text{change the signs}\end{array}\right\\\\\underline{+\left\{\begin{array}{ccc}x-2y=-26\\-x+y=2\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-y=-24\qquad\text{change the signs}\\.\qquad\qquad y=24\\\\\text{Put the value of y to the second equation:}\\\\x-24=-2\qquad\text{add 24 to both sides}\\x=22[/tex]

Answer Link

Otras preguntas

A pair of sneakers is on sale for $ 51.25. If the original price of the sneakers is $ 62.50 , what is the percent of the discount?
Following the annexation of Hawaii, agribusiness controlled: O A. Plantations. O B. Railroads. O C. Banks. O D. All of the above​
Expand and simplify (7x-2x)-(1+3x)
Use the number line to add the fraction.
The table shows a relationship between x and y. What value of x will result in a y-value of –13? the value of X is____________?
Find the length of the line segment AB where A (6, 12) and B (1,0) A) 15 units B) 12 units C) 13 units D) 10 units​
A verbal description of a linear function f is given. Express the function f in the form f(x) = ax + b. The linear function f has rate of change 5 and initial v
Giúp với mng ơi yêu mng <3 béo ị
What is the answer hurry
3. Which of the following is significant about the law of nations?