Marinavina23
Marinavina23
02-02-2016
Mathematics
contestada
7x+6y=21
X+3y=-12 what is the answer
Respuesta :
Panoyin
Panoyin
02-02-2016
7x + 6y = 21 ⇒ 7x + 6y = 21
1x + 3y = -12 ⇒ 2x + 6y = -24
5x = 45
5 5
x = 9
x + 3y = -12
9 + 3y = -12
- 9 - 9
3y = -21
3 3
y = -7
(x, y) = (9, -7)
Answer Link
VER TODAS LAS RESPUESTAS ( 36+ )
Otras preguntas
A triangle has 2 sides that equal 6 inches. The other side equals 3 inches. What kind of triangle is it?
Mr.steven drives 110 miles in 2 hours,165 miles in 3 hours and 220 miles in 4 hours.how manymile will he drive in 5 hours
What is the distance between-10 and 10 on the number line?
List three to five inferences that you can make from the story "The Most Dangerous Game" and note the clues that led you to make each inference.
Which of the following situations is most likely to result in language divergence? A. Two different languages that are spoken in the same geographic area combin
Identify the common ratio in the following sequences 2,14,98,686,... common ratio is: -3,3,-3,3,... common ratio is: 800,200,50,12.5,... common ratio is
The shoot systems includes nodes, internodes, lateral bud, and stem. true or false
If there is no clearly identified author for a document on the internet, you should try to determine the ____________ that is responsible for the document.
The width of a rectangle is 8 units less than the length. The area of the rectangle is 9 units. What is the length, in units, of the rectangle?
According to his research, which would most likely be a question studied by Sir Isaac Newton? Do stars move or stay put in the nighttime sky? Do larger objects
