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if the equation is y=x-9 and y is -4 and -9 wut wud the x be

2006-11-09 15:55:51 · 8 answers · asked by La Eztrellita 1 in Education & Reference Homework Help

8 answers

y = x - 9; given equation
adding 9 to both sides , we get:
x = y + 9 ; reason---if egg plus onion is omlet,omlet minus onion is egg,here 'y' is egg and 'x' is omlet,9 represents onions

y = - 4 ;given in problem

therefore; x = - 4 + 9

answer: x = 5

if y = -9

x = y + 9
then x = -9 + 9
answer: x = 0


Hope you understood it.
best regards,

2006-11-09 16:11:57 · answer #1 · answered by Aq 3 · 0 0

it says Y = X - 9 AND Y = -4 & Y = -9

it means at y = -4 and y = -9 what is the value of X?

You should seperate 2 values of X first, means, at Y = -4, what is X?
Y= X - 9
- 4 = X - 9
9 - 4 = X - 9 + 9
5 = X

NOW, repeats for Y = -9
Y = X -9
-9 = X - 9
9 - 9 = X - 9 + 9
0 = X

you have two values of X, X= 0 & X = 5

2006-11-10 00:54:08 · answer #2 · answered by Anonymous · 0 0

=5

2006-11-10 00:08:51 · answer #3 · answered by Anonymous · 0 0

-4=x-9
(+9)-4=x-9(+9)
5=x

2006-11-10 00:00:33 · answer #4 · answered by Jill G 1 · 0 0

Replace the y with those numbers and solve for x...that's all you have to do. So, you get -4=x-9 for one equation and -9=x-9 for the other...now just get like terms and get x alone.

2006-11-10 00:00:16 · answer #5 · answered by Shaun 4 · 0 0

So, y equals -4?
What do you mean when you mentioned -9?
Ignoring that part where you randomly said -9, it would be this:
-4 = x - 9.
9 + -4 is 5.
So, x = 5.

2006-11-10 00:08:57 · answer #6 · answered by Anonymous · 0 0

Simply solve for x...
y=x-9. y=-4, so
-4 = x - 9, add 9 to both sides and get
5 = x
Similarly, for y = -9,
-9 = x - 9. Add 9 and get
0 = x

2006-11-09 23:59:53 · answer #7 · answered by maddojo 6 · 0 0

y = x - 9
when y = -4, x = 5
when y = -9, x = 0

2006-11-10 00:01:16 · answer #8 · answered by maggie_at0303 3 · 0 0

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