tweety1 tweety1
  • 02-02-2015
  • Mathematics
contestada

x+y=10 x-y=20 how do you solving systems of equations with elimination

Respuesta :

konrad509
konrad509 konrad509
  • 02-02-2015
[tex]x+y=10\\ \underline{x-y=20}\\ 2x=30\\ x=15\\\\ 15+y=10\\ y=-5\\\\ \boxed{(x,y)=(15,-5)}[/tex]
Answer Link

Otras preguntas

Who was the roman emperor who first legalized christianity and founded the first st. peter's in rome?
history question down below
what step did peter the great take to modernize russai
The reasons Native American culture was irrevocably changed by the end of the 1800s are?
What are the similarities between the northeast and southeast regions
Simona si Andrei au impreuna 648 de lei. Andrei are o suma de trei ori mai mare decat a Simonei. Cei doi copii hotarascsa cumpere un joc Lego care costa 128 de
Simplify difference quotient F(x)=2x^2+x+3
Describe the landscape of the moon and the events that occurred to create this landscape. What is believed to be true of the far side of the moon and why?
Ow is the constant max_length declared inside a method with the value of 99.98?
How many cations are there in 20.0 g of sodium phosphate?