ivan37 ivan37
  • 02-06-2017
  • Mathematics
contestada

What is the solution to the system of equations x-y=-1 and x-3y = 13

Respuesta :

Osiris7 Osiris7
  • 02-06-2017
Using process of substitution. 

x-y+y=-1+y

x=-1+y

Now substitute into x-3y=13

-1+y-3y=13
-1+1-2y=13+1
-2y=14

y=-7

Therefore, x= -8
Answer Link

Otras preguntas

What are the advantages and disadvantages of globalization
What are the advantages and disadvantages of globalization
Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?
Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?
What are the advantages and disadvantages of globalization
Hey guys, I need 5 sentences!¿Prefieres viajar en coche, en tren, en barco o en avión? ¿Por qué?
What are the advantages and disadvantages of globalization
how do you balance __H2SO4 + __B(OH)3 --> __B2(SO4)3 + __H2O
What are the advantages and disadvantages of globalization
What are the advantages and disadvantages of globalization