Question

Joe solved this linear system correctly.

6x+3y=6

y=-2x+2

These are the last two steps of his work:

6x-6x+6=6

6=6

Which statement about this linear system must be true?

a There is no solution to this system
b y must equal 6
c x must equal 6
d There are infinitely many solutions to this system

Answer 1

plz help i will give medal and fan and testimony to whom ever does! oh plz no guessing i really need to know so I dont make a mistake, this is practice for a test that is coming up next year and i wanna be ready i was thinking it was either d or b i am not sure plz support ur answer with proof thx

Answer 2

well if I rewrite the 2nd line by adding 2x to both sides of the equation

2x + y = 2

and if you take the 1st line

6x + 3y = 6 and divide each term by 3, what do you get...?

Answer 3

i dont understand hmmmm.....

Answer 4

@chibiterasu can u help?

Answer 5

wait isnt the answer 6? so it is either b or c help openstudy!

Answer 6

u know i am going with b no one helps!

Answer 7

ugh

Answer 8

feel free to help if u r kind ;)

Answer 9

the 2nd line is a multiple of the 1st line...

so they are basically the same line... so if 1 line sits ontop or another line there are infinite solutions...