Posted by unknown on Thursday, August 23, 2007 at 11:04pm.
if x3y=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
x3(2x+1)=?
since y=2x+1

Algebra1  unknown, Thursday, August 23, 2007 at 11:28pm
x3y=8 and y=2x+1, then x= ???

Algebra1  ~christina~, Thursday, August 23, 2007 at 11:30pm
x3(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 don't know how to do it.... im confused....
so i multiply the 3&1 ( right??)
then i add the #'s with x's... 1x + 2x which is 3x^2.... see i don't know wat im doing.... becasue the multiply choices are single digits or fractions....

Algebra1  ~christina~, Friday, August 24, 2007 at 12:00am
well
x3(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/x3
 algebra1  (3x^22x1)(5x^24x2)
 Algebra1  x(x32)=0
 algebra1  1/2x6=5
 algebra1  1/2x6=5
 algebra1  y=x2+6
More Related Questions