sammy3551
sammy3551 sammy3551
  • 02-07-2019
  • Mathematics
contestada

What is the solution to the system of equations?
y = 5x + 2
3x = -y + 10
(4, -18)
(-18, -4)
(7,1)
(1,7)

Respuesta :

gmany
gmany gmany
  • 02-07-2019

Answer:

(1, 7)

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}y=5x+2&(1)\\3x=-y+10&(2)\end{array}\right\\\\\text{substitute (1) to (2):}\\\\3x=-(5x+2)+10\\3x=-5x-2+10\qquad\text{add 5x to both sides}\\8x=8\qquad\text{divide both sides by 8}\\x=1\\\\\text{put the value of x to (1):}\\\\y=5(1)+2\\y=5+2\\y=7[/tex]

Answer Link

Otras preguntas

what limits the species of plants that can grow in an area
Both Seagulls and wild geese are large birds. They're also similar in that both kinds of birds can fly over great distances. On the other hand, seagulls are sca
Aside from the nucleus, where else can a small amount of dna be found in a eukaryotic cell?
An employer informs its employees that it will hold a substantial cash prize drawing for each work group at the end of each month in which all members of the
Which consumer are maggots in the food chain
There ought to be a law about...
Bradley made a house for his dog Bowser out of wood with a Cube base and a triangular prism top
Perform an Internet search to learn about grounding wires, fuses, and circuit breakers. Specifically, describe how each device works; and relate its function to
Consider the rate below R=K(L)^2(XY) What is the overall order of the reactants in this reaction? 0 1 2 3
Find the amount of annuity. Amount of each deposit:$6200 Deposited: semiannually Rate per year: 6% Number of years:5 Type of annuity: ordinary