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

Does anyone understand this at all??
Should I move to Canada?
What is video conferencing?
Graphs again.. thank you for any help!!!
**WILL BE PUT AS BRAINLIEST** Which of the following adaptations in wooly mammoths would have best prevented their extinction? A. Shedding of fur B. Darker colo
Motion pictures began with crude drawings that were flipped through quickly to create a moving image. True False
what is the appearance a trait takes on?​
Decomposers break down dead plant and animal materials. What happens next?
Help me please!!!!!!!
in a video game example, what activity is the person likely engaged in? A studying for a test B playing a video game C helping cook dinner D riding a bicycle​