caitieidson5769 caitieidson5769
  • 22-07-2017
  • Mathematics
contestada

Find the solution of this system of equations. separate the x- and y-values with a comma. x= 8 + y -2x + 6y= -20

Respuesta :

Banabanana
Banabanana Banabanana
  • 22-07-2017
{x= 8 + y
{-2x + 6y= -20

-2(8+y) + 6y = -20
-16 - 2y + 6y = -20
4y = -20 + 16
4y = -4
y = -1

x = 8 + y = 8 + (-1) = 7

Answer: x = 7,  y = -1
Answer Link

Otras preguntas

1/11 -0.9 0.09 1/10 in least to greatest
under the supremacy clause if a state and federal law regulate the same subject matter the state law will automatically be preempted true or false
What is the origin of the phrase (to meets one's waterloo) and What does it mean?
How might a country with only one valuable resource develope its economy?
compare and contrast a mountain range with a mountain system
How did flooding rivers contribute to the beginning of farming communities?
Two fifths of the instruments in the marching band are brass, one third are percussion and the rest are woordwinds. Two Fifths of the brass instruments are tuba
What was the name of the island on the East Coast, where thousands of immigrants were processed before coming into the country?
how do tributaries increase the economic benefits of rivers
"what human body system could be fossilized?"