How do solve the following linear system?: # x+y=-4, 2x + 4y = 8 #?
2 Answers
Aug 4, 2018
Explanation:
Here ,
Subst.
Subst.
Hence ,
Aug 4, 2018
Explanation:
Substitute this into the second equation
Multiply out the bracket
Add 8 to both sides
Divide by 2
Now put
Subtract 8 from both sides