Posted by BB on Thursday, December 27, 2007 at 8:00pm.
Solve the following system by using either addition or substitution. If a unique solution does not exist, state whether the system is dependent or inconsistent.
10x+2y=7
y=5x+3

Algebra 1  jere, Thursday, December 27, 2007 at 8:07pm
no solution.
first you have to place the 5x on the same side as the y... and it becomes a positive
5x+y =3
then you multiply it by 2
2(5x+y =3)
then it is 10x2y =6
add it to 10x+2y = 7
you will see that 0 does not = 1, so therefore it has NO SOLUTION

Algebra 1  jere, Thursday, December 27, 2007 at 8:08pm
as to whether its dependent or inconsistent... uhm, there should be something in the text that explains that :]

Algebra 1  drwls, Thursday, December 27, 2007 at 8:49pm
The equations are inconsistent. Both cannot simultaneously be true.
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