Homework Help: math

Posted by ,algebra on Wednesday, May 2, 2012 at 3:20pm.

Solve the following system using elimination. If a single solution exists, write the solution as an ordered pair. Your answer will be an ordered pair, no solution, or infinitely many solutions

x-y=4
3x-5=2

math - visoth, Wednesday, May 2, 2012 at 4:22pm
bring y to the other side on first equation so that you will have

x= y + 4 and substitute y + 4 for x in second equation

3(y+4) - 5 = 2 and solve

3y + 12 - 5 = 2

3y +7 = 2

3y= -5

y= -5/3

plug the answer for y into either equation and solve

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