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  • 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]

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