Question

x-y=5

can anyone solve this? or explain how to solve this problem?

Answer 1

I believe you need to solve for y to then continue to solve for x

Answer 2

no...thats not right...

Answer 3

if you have an equation with 2 unknown variables, you need 2 different equations to solve it...

Answer 4

the equation you gave is for a graph...there are a lot of possible questions that can come from graphs...such as what is the x or y intercept

Answer 5

im only solving for y

Answer 6

right, so to solve for y, that means you want to get y alone on one side of the equation

Answer 7

I guess you could say that y=x-5, but past that you can't do anything without another equation.

Answer 8

y=x-5...this means that the y intercept on a graph is -5 and the x intercept is 5...the slope is 1...etc

Answer 9

hope that helps.

Answer 10

right so the basic rule of algebra is, you can do the same operations to both sides o the equation and know that it still holds - this means you can add anything to both sides, subtract, divide, or multiple both sides by the same thing and it's still true

Answer 11

so x-y = 5

Answer 12

so get y alone, you could try adding "y" o both sides

Answer 13

yes and subtracting 5 from both sides as well

Answer 14

so
1. x - y = 5
2. x - y + y = 5 + y
3. x = 5 + y
4. and no subtract y from both sides
5. x - 5 = 5 + y -5
6. x - 5 = y
7. y = x -5

Answer 15

ok I think I got it now...thanks so much

Answer 16

no=now* ;)

Answer 17

and your subtracting 5..not y :p

Answer 18

lol yep!

Answer 19

ack!