naebrooks24 naebrooks24
  • 25-03-2021
  • Mathematics
contestada

Solve -4x+y=-1 and Y=2x-5 using substitution

Respuesta :

layaldanig
layaldanig layaldanig
  • 26-03-2021

Answer:

x= -2, y= -9

Step-by-step explanation:

let -4x+y=-1 be [1]

and y=2x-5 be [2]

Sub [2] into [1]

-4x+(2x-5)=-1

-4x + 2x -5 = -1

-2x -5 = -1

-2x = 4

2x = -4

x = -2

Sub x=-2 into [2]

y=2(-2)-5

y=-4-5

y=-9

Answer Link

Otras preguntas

__ FeC2O4 +__ CO2->__ Fe2 (C2O4)3
Which modern musical instrument is descended from the kithara? A: guitar B: violin C: oboe D: flute C?
help plz help plz help
What is the chemical reaction mechanism by which cells make polymers from monomers?
absolute value equation |x-3|=x
Which of the following is an example of how people use land?
What is the anatomical name for the shaft of a long bone?
The Iberian Peninsula, home to modern-day Spain and Portugal, was
a dish washer cleans 1350 dishes in 1 hour.how many dishes will it wash in 16 more minutes?
6. Before beginning an Internet search to find supporting information for your topic, you must know A. what type of information you're looking for.