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 ( 71+ )
Otras preguntas
Which of the following should NOT be provided in a complaint letter? a. Purchase information. b. Reason for the complaint and expected results. c. Sarcastic
what multiplys to be 12 but adds to be 7
The Schachter-Singer theory of emotion: a) says your temporal lobes are at work b) says the frontal lobes interpret the body's reaction c) says your frontal lo
25 letters in 4 days
The rainfall total two years ago was 10.2 inches. Last year's total was 20% greater. What was last year's rainfall total?
what are the features of burton biscuits
A unicameral state legislature is one that a. is one-chambered. c. is run by the speaker of the house. b. has two houses. d. is headed by the governor.
A Hindu wanting to work on spiritual awareness might decide to what
what is 10 divided by 5/8
A number n is 150% of number m. Is n greater than, less than or equal to m?
