Help! if -4x-y=20, is y = -4x - 20 ?

Question

Am I correct? Thanks for your help!

Answer 1

-4x-y=20
-y=20+4x
y=-(20+4x)
y= -4x-20
Yesh

Answer 2

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To set up a substitution, you need one variable in terms of the other. The second equation is easy to get into the required format, since y's coefficient is already 1. So add 4x to both sides and you get: y = 20 + 4x Now, substitute that y in the first equation, and then solve for x: 9x + 8y = -4 9x + 8(20 + 4x) = -4 9x + 160 + 32x = -4 41x = -164 x = -4 Now that we have an x, we can substitute that back into either equation and we should get the same value for y. Since we already have y in terms of x, that's generally the easiest way to do it: y = 20 + 4x y = 20 + 4(-4) y = 20 - 16 y = 4 So the answer to your problem is : x = -4 y = 4 Or if these equations represent lines on a chart, the solution of where they meet is the point (-4, 4)

Answer 3

4x Y 20

Answer 4

Yes. If you move the -4x to the right side, you have
-y = 4x + 20. Then divide everything by -1 to get y = -4x - 20.

Answer 5

You are CORRECT!

Everytime you move a number from one side of the equal sign to the other, you must reverse the positive or negative symbol in front of it. So, you'd start by isolating -y, and you'd get
-y=20+4x. Now, to make y a positive number, you must reverse the signs on the other number, to get y=-20-4x.

Answer 6

Yes. -4x-y=20 means that -4x = 20+y and therefore -4x-20=y.

Answer 7

Yes because: -4x-y = 20
-y = 4x+20
--- = -------
-1 -1
Y = -4x - 20

Answer 8

don't listen to . he's just being a little dick. but you are correct

-4X-y=20
+y +y
-4X=20+y
-20 -20

-4X-20=y

Answer 9

yes

-4x-y=20
(add 4x to both sides)
-y=4x+20
(multiply both sides by -1)
y= -1(4x+20)
(distribute)
y= -4x -20 that's your answer

Answer 10

no -y= 20/-4.

-y= -5.

so y=5.

Answer 11

Yes correct.