sesylara1109 sesylara1109
  • 03-12-2018
  • Mathematics
contestada

Use substitution to solve this system of the equations 2x-3y=-1 y=x-1

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 03-12-2018

Answer:

(x, y) = (4, 3)

Step-by-step explanation:

The second equation gives an expression for y that can be substituted into the first equation.

... 2x -3(x -1) = -1 . . . . put x-1 where y was

... -x +3 = -1  . . . . . . . simplify

... 4 = x . . . . . . . . . . . add x+1

Using that second equation, we can find y to be ...

... y = 4 -1 = 3

The solution is (x, y) = (4, 3).

Answer Link

Otras preguntas

A chef opens a bag of potatoes, only to discover that 25% of the potatoes have gone bad. If the bag contains 48 potatoes, how many potatoes have gone bad?
What’s 1+1 A. 2 B. 3 C. 1423567iytjhrfgdsa D. Ewffwf
What is the answer to (1/2)x-1-4
Napoleon sent for Toussaint so the two men could meet. Why did he send for him?
does dr seuss's relate to our present day society in anyway
Pls do it I don’t understand
Can someone pleaseeee help and if you’re correct I’ll give u brainlist
I NEED HELP!!!!!! PLEASE HELP ME!!
Make x the subject of the formula y ( x + a ) = c ( x + z )
Recall the steps of the engineering design process. Compare and contrast the similarities and differences between the stages of the web design process and the e