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 ( 82+ )
Otras preguntas
How do you convert 1.16 in to a fraction
what number is 100,000,000 more than 5,438,724,022?
7,000 is ten times as much as what number?
There are 35 boys in sixth grade. The number of girls in the sixth grade is 42. Lonnie says that means the ratio of number of boys in the sixth grade to number
If you release a weight and allow it to fall under the influence of gravity alone, what kind of motion will it experience?
find a whole number x in x/113 so that the ratio is a good estimate for pi
A mobile phone company offers two monthly calling plans, A and B. Under A, every minute costs $ 0.10. Under B, the first 100 minutes costs $ 12 and every extra
how big is San Nicolas Island
what number is 100,000,000 more than 5,438,724,022?
Greg bought 2 boxes of balloons he used half of them to decorate his yard he used 40 to decorate his porch he used the rest inside his house how many balloons d
