monesard7eebr monesard7eebr
  • 23-11-2016
  • Mathematics
contestada

Which ordered pair is the solution to the system?

{x+3y=6
{4x+6y=−6

(−9, 5)
(−3, 3)
(12, −2)
(6, 3)

Respuesta :

anouar
anouar anouar
  • 23-11-2016
x=6-3y
4(6-3y)+6y=-6
24-12y+6y=-6
24-6y=-6
-6y=-30
y=30/6
y=5

x+3 (5)=6
x+15=6
x=-9. (-9,5) <------------
Answer Link

Otras preguntas

98 divided by 7 please show how
98 divided by 7 please show how
Juan is thinking of two numbers. He says that 3 times the first number minus the second number is 118. In addition, two times the first number plus the second n
-2n-h(4rx-6s)-3rx+3s i need help doing this problem
98 divided by 7 please show how
-2n-h(4rx-6s)-3rx+3s i need help doing this problem
Find the slope of the ski run that descends 15 feet for every horizontal change of 24 feet
Find the slope of the ski run that descends 15 feet for every horizontal change of 24 feet
factor: 6x+36=  how do I solve this problem
98 divided by 7 please show how