Posted by **unknown** on Thursday, August 23, 2007 at 11:04pm.

if x-3y=8 and y=2x+1, then x= ???

- Algebra1 -
**DrBob222**, Thursday, August 23, 2007 at 11:07pm
Substitute 2x+1 into equation 1 for y and solvee for x.

- Algebra1 -
**unknown**, Thursday, August 23, 2007 at 11:08pm
huh??

- Algebra1 -
**~christina~**, Thursday, August 23, 2007 at 11:11pm
x-3(2x+1)=?

since y=2x+1

- Algebra1 -
**unknown**, Thursday, August 23, 2007 at 11:28pm
x-3y=8 and y=2x+1, then x= ???

- Algebra1 -
**~christina~**, Thursday, August 23, 2007 at 11:30pm
x-3(2x+1)=??

you have to solve it by multiplying the 3 over and then just adding the x's and the #'s without the x's

Nobody's going to give you all the answers.

- Algebra1 -
**unknown**, Thursday, August 23, 2007 at 11:47pm
im not asking for da answer I juss dont know how to do it.... im confussed....

so i multiply the 3&1 ( right??)

then i add the #'s with x's... 1x + 2x which is 3x^2.... see i dont know wat im doing.... becasue the multiply choices are single digits or fractions....

- Algebra1 -
**~christina~**, Friday, August 24, 2007 at 12:00am
well

x-3(2x+1)=

multiply the -3 and the 2x+1

then add

- Algebra1 -
**unknown**, Friday, August 24, 2007 at 8:51pm
thank u..... & sorry if i was rude... i was just confused...

## Answer This Question

## Related Questions

- algebra1 - 6 + x/-8 = 4/7 what does x =
- algebra1 - -7x+y=19 -2x+3y=19
- algebra1 - -3x+7y=-16 -9x+5y=16
- Algebra1 - 5c+4=-26. ?? Is it 6,,,-6,,,-4.4 or 3??
- Algebra1 - 6/14=7/x-3
- algebra1 - (3x^2-2x-1)-(5x^2-4x-2)
- Algebra1 - x(x-32)=0
- algebra1 - 1/2x-6=5
- algebra1 - 1/2x-6=5
- algebra1 - y=x2+6

More Related Questions