mariana4274 mariana4274

02-03-2021
Mathematics

contestada

What is the solution to this system of linear equations?
y - 4x=7
2y + 4x = 2
(3,1)
(1,3)
3.-1)
(-1,3)

Respuesta :

anikakinnear anikakinnear

02-03-2021

[tex]y=7+4x\\2(7+4x) +4x=2\\14+8x+4x=2\\14+12x=2\\12x=-12\\x=-1\\\\y-4(-1)=7\\y+4=7\\y=3[/tex]

(-1,3)

Answer Link

Otras preguntas

If y=2 when x=3. What is the value of y when x=9?

Why do we use granite?

Which sentence correctly forms the plural of the letter c? A.How many c's are in accordion? B.How many cs'

The tropical climate zone is in which two states?

The fetus is nourished by the __________ during the first 7 weeks and by the _______ from week 8 through birth ?

Because the majority of the evening cable TV programs available dealt with violence and sex, the parents decided that the programs were for the children to watc

What is the correct term for a release of an ovum in the female reproductive system?

what was the first industry to be regulated by the united states goverment? a. oil b.meat packing c. steel D.

Give 3 examples to show work being done.

Please help??? Science SEMESTER REVIEW!!!!In a series of rock layers, a geologist finds fossils of a pine trees and oak trees in layers that are 1.0 m and 1.5