Jasmine2091 Jasmine2091
  • 02-06-2015
  • Mathematics
contestada

what is the solution to this system of linear equations:
y-x=4 and y+2x=1

Respuesta :

Panoyin
Panoyin Panoyin
  • 04-06-2015
 -x + y = 4
2x + y = 1
    -3x = 3
     -3    -3
       x = -1
   -x + y = 4
-(-1) + y = 4
     1 + y = 4
  - 1         - 1
           y = 3
(x, y) = (-1, 3)
Answer Link

Otras preguntas

Which condition was most necessary for a monarch to gain power? why?
60 is 10 times as much as what?60 is 1/10 of what?
(32-20) divided by 4
which number between 20 and 29 has 2 and 3 in its prime factorization?
what is 122/11 equivalent to as a decimal??
how do you compare 1/5 and 0.201
The least common multiple of two numbers is 60, and one of the numbers is 7 less than the other number . What are the numbers ? Justify your answer
an airplane climbs at a rate of 66.8 feet per minute. It descends at twice the rate that it climbs. Assuming it descends at a constant rate, how many feet will
write down everything you know about the equation y=mx+b. you should include what this general equation represents,as well as what each of the different letters
A meal of a chicken sandwich and some pasta salad had 150 grams of carbohydrates. The pasta salad had 30 grams more than twice the grams of carbohydrates in the