Asked by Yolanda
What is the answer to 7x+2y=16 and -21x-6y=24 using the substituion method?
Answers
Answered by
Steve
There's either a typo, or it's a trick question. Take a look at the equations.
7x+2y=16
-21x-6y=24
If you divide the 2nd by -3, you get
7x+2y = -8
There is no solution, since the left sides are the same, but the right is different. The lines are parallel.
7x+2y=16
-21x-6y=24
If you divide the 2nd by -3, you get
7x+2y = -8
There is no solution, since the left sides are the same, but the right is different. The lines are parallel.
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