Systems of equations types
 Independent
Inconsistent
Dependent
Solution?
Solve the linear system by using substituion.
2x+y=8
y=x-7

What does the 1st equation become after plugging in the 2nd equation for y?


What does the 2nd equation become after plugging in the answer for x?
What is the solution of the linear system?
Solve the linear system by using elimination.
x+y=8
x-y=2

What do you get after adding the equations? 



What does the 2nd equation become after plugging in the answer for x?
What is the solution of the linear system?
Independent
dependent
 inconsistent
Independent
Inconsistent
 dependent
The blue line is on top of the brown line.
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