Posted by Audrey on Friday, October 5, 2007 at 10:46am.
1.) Write a system of equations that has NO solution.
2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x3y=8
7x4y=11

Algebra 2  DrBob222, Friday, October 5, 2007 at 11:06am
Try
x+t=14
2x+2y=28
2. If you multiply #1 by 4 the coefficient of y will be 12. Multiply #2 by 3 will give the coefficient of y as 12. \Subtracting then would eliminte y.
Check my thinking.

Algebra 2  Adam, Friday, October 5, 2007 at 11:08am
2.)
Multiply the first equation by 4 and the second equation by 3.
4(2x  3y = 8), so 8x  12y = 32
3(7x  4y = 11), so 21x + 12y = 33
So, the first equation has 12y and the second equation has 12y, so the y variables cancel out.

Algebra 2  DrBob222, Friday, October 5, 2007 at 11:23am
Try
x+t=14
2x+2y=28
I made a typo. first equation should be x+y=14 y and not t.
Note that Adams' response eliminates y by addition in problem #2. My response eliminates y by subtraction. Either is correct.
Answer This Question
Related Questions
 Algebra 2  1.) Write a system of equations that has NO solution. 2.) If you ...
 Algebra 2  1.) Write a system of equations that has NO solution. 2.) If you ...
 math  How do you solve system of equations and tell if they're consistant and ...
 Algebra  Solve the system of equations: First:x+3y=5 Second:3xy=5 multiply the...
 Math  I am really have a tough time trying to solve this problem. I think my ...
 algebra  solve the system of equations by graphing. Then classify the system as...
 Algebra  To solve the following system of equations by elimination, which step ...
 Math 116  Consider the following system of equations. y=2x2 y2x=9 What can ...
 alegebra  Solve the system of equations by graphing. Then classift the system ...
 math  Consider the following system of equations. y = 2x  2 y  2x = 7 What ...
More Related Questions