Posted by **Urgent PleaseHelp ** on Monday, April 23, 2012 at 8:25pm.

{Y= 3x

Y-x=4

So far I have done this. Please tell me the next steps. Thank you.

X=Y-4

Y=3(4-Y)

Y=12-3Y

- Math Help -
**Reiny**, Monday, April 23, 2012 at 9:01pm
from

x = y-4 , sub in y=3x

x = 3x - 4

x - 3x= -4

-2x = -4

divide both sides by -2

x = 2

sub into y=3x

y = 3(2) = 6

x = 2, y = 6

your second last line

Y=3(4-Y)

should have said:

Y = 3(y-4)

then

y = 3y - 12

-2y = -12

y = 6, just like I had mine

- Math Help -
**Bosnian**, Monday, April 23, 2012 at 9:03pm
y = 3 x

y - x = 4

3 x - x = 4

2x = 4 Divide both sides by 2

x = 4 / 2 = 2

y = 3 x

y = 3 * 2 = 6

## Answer This Question

## Related Questions

- math,help,factoring - i need help i don't know how to do the next step. factor ...
- math,finite mathematics - this is what i have so far for the following problem ...
- Math - OK, I have had trouble with math, 'C' average, and we are learning ...
- English - Mr Carter says we can't tell people about the steps in the sand. He ...
- Math - (x+20)(x-9)(x+10)>0 Please help? I'm stuck...need to find the solution...
- Math - for (sec x -1)(sec x + 1) = tan^(2) x so far I got up to: (sin^(2)x / ...
- Chemistry - Oligonucleotides can be synthesized, one nucleotide at a time, by ...
- Grade 9 Algebra Question 2 - 2. PYRAMIDS When climbing an ancient Mayan pyramid...
- Math 9 - 5 x 10^n = 5 Can someone please tell me the steps to solve for n? thank...
- calculus - I don't understand how to do this? I don't know the steps on how to ...

More Related Questions