Question

What is the solution of the following system? {-2x-y=1
-4x-2y=-1

infinitely many solutions
no solutions
(3,8)
(-3,-8)

Will give a medal to whoever can help!

Answer 1

@Isaiah.Feynman could you help?

Answer 2

@Mertsj

Answer 3

@JuanitaM

Answer 4

what did you get?

Answer 5

i'm not sure where to begin on this. usually on system problems there is a table or graph or something but there isn't on this one.

Answer 6

make y the subject of the formula first, ill guide you as you do it :)

Answer 7

y the subject of the formula for each equation first*

Answer 8

would it be y=1-2x? is that what you mean?

Answer 9

-2x-y=1
-2x = 1 + y
y = 12x - 1
yes that's wat i ment :) now do the same for the other equation

Answer 10

y = -2x - 1
sry my bad lol

Answer 11

now do the same for -4x-2y=-1

Answer 12

2y=-4x-1?

Answer 13

u made an error, check over your signs

Answer 14

-2y=-4x-1

Answer 15

-4x-2y=-1
-4x = -1 + 2y
2y =-4x + 1
its positive 1 and not negative one

Answer 16

when your making y the subject of the formula it must stand alone on its side of the equal sign like this y = -2x - 1.
Therefore i want you to move the 2 next to the y in 2y =-4x + 1 to the other side of the formula

Answer 17

of the equation, let me know wat you get :)