Seudónimo Seudónimo
  • 13-09-2018
  • Mathematics
contestada

solve the system using substitution.
-5x+y=4
4x-4y=16
a-(-4,0)
b-(1,4)
c-(0,-4)
d-(4,1)

Respuesta :

grujan50
grujan50 grujan50
  • 13-09-2018

Substitution method is one of the ways to solve this system.

-5x+y=4 and 4x-4y=16.

First we will divide the second equation with number 4 and get

x-y=4 => x=y+4 than we will replace x in the first equation

-5(y+4)+y=4 => -5y-20+y=4 => -4y=4+20 => -4y=24 => y=-6

x-(-6))=4 => x+6=4 => x=4-6=-2    (x,y)=(-2,-6)

Good luck!!!

Answer Link
segesma1699c segesma1699c
  • 14-11-2020

Answer:

I believe it is (0,-4)

Step-by-step explanation:

good luck!

Answer Link

Otras preguntas

Q. any sëxy girƖ free now ? then comment me fast ​
I need help with this question but no one is helping me! Can someone please help me​
formula of 40 m/s & 1.20kg
2w - 15w - 18 = -83 solve for w simplify as much as possible
I need help solving this problem
What happens in stage 1 of wastewater treatment?​
A small radio transmitter broadcasts in a 58 mile radius. If you drive along a straight line from a city 69 miles north of the transmitter to a second city 79 m
How many atoms of He can a balloon that has a 21 cm diameter hold? The density of Helium is 1.18 g/L. (Assume the balloon is a sphere)
1.) Tony deposited $743.22 to his checking account on July 1st. He then wrote a check for $312.29 and another check for $36.70. The bank charged a monthly servi
The senior classes at saint Jo and Wilde Lake planned separate trips to the county fair. Saint jo rented and filled 12 vans and 3 buses with 282 students. Wilde