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 ( 99+ )
Otras preguntas
Find the length of the diagonal of a square with side length 5 square root of 5
/ is a fraction line. Grandma’s favorite cheese is on sale for $6 a pound. Grandma wants to write a function that will help her determine the cost of purchasing
What is the plot of "birthday girl" short story?
Write the quadratic equation in standard form -8x+3x^2=-18
Brown v. board of education (1954 is a famous supreme court case dealing with
When did the yalta conference take place?
Why do Mrs. Hodgson and Mrs. Jenkins envy each other? (Christmas storms and sunshine)
Which of the following details helps you figure out what has happened to the owner of the house in there will come soft rains
An adverb clause is a dependent clause used as an adverb in a sentence to indicate time, place, condition, contrast, concession, reason, purpose, or result.
Differences between landslides and earthquakes
