xXxGhostBoi2003xXx
xXxGhostBoi2003xXx xXxGhostBoi2003xXx
  • 19-01-2018
  • Mathematics
contestada

ASAP PLEASE 15 POINTS

Use addition to solve the linear system of equations. y= -3x+1 y=2x-4
(-2,1)
(1,-2)
(1,2)
(-1,-2)

Respuesta :

mathmate
mathmate mathmate
  • 19-01-2018
The given set of equations:
y=-3x+1............(1)
y=2x-4 .............(2)

can be solved most conveniently by rewriting as
y =-3x+1 = 2x-4

We concentrate on the right equality, which is expressed in x only:
-3x+1 = 2x-4
Transpose and solve for x
1+4 = 2x+3x
5x=5
x=5/5=1
Substitute x=1 in the 
first equation: y=-3(1)+1=-2
second equation: y=2*x-4=2(1)-4=-2

So the solution is x=1, y=-2, or (1,-2)

Answer Link
martzgutz
martzgutz martzgutz
  • 15-01-2020

Answer:

(1,-2) I got a 100%

Step-by-step explanation:

Answer Link

Otras preguntas

what is VIII IN romen numerals
What is the equation of this line? A) y=−2x B) y=1/2x C)y=2x D) y= -1/2x
Help Im giving 10 points.
help for brainliest!!
HELP PLEASE!!! 25 POINTS AND I WILL GIVE BRAINLIEST IF ANSWER IS RIGHT Alabama · North Carolina · South Carolina · Tennessee All of these states.... A) borde
The amount sellers are willing and able to sell at various prices is called------. A. price B. supply Please help me ASAPI think it's supply
True or false the equation of a rational function does not have to contain a rational expression
What has the food industry done to promote healthy eating habits? Have these efforts been successful?
What inequality represents the verbal expression? all real numbers less than 70 Question 6 options: x ≤ 70 x < 70 x > 70 x ≥ 70
If the sum of the interior angles is 3060 what is the number of angles