Solve the system by elimination. If the system is inconsistent or has dependent equations, say so.
x-4y=-4
-4x-3y=-3

Question

Solve the system by elimination. If the system is inconsistent or has dependent equations, say so.   
x-4y=-4
-4x-3y=-3

eyust707 · Answer

Has anyone taught you what they mean by "elimination" ?

anonymous · Answer

ok..but why?

eyust707 · Answer

because then when it comes up on the test she will have no idea how to do it

anonymous · Answer

ah,,right..ok,,

eyust707 · Answer

@christina.sion do you still need help?

anonymous · Answer

Yes I still need help. I learned it but that was a couple of years ago.

radar · Answer

You combine two equations in order to eliminate a variable.  In this case let us eliminate te x.
Step 1 Make the coefficient of x in both equations equal and opposite in sign.
For this example multiply the first equation by 4 getting:
4x-16y=-16 now add that to the second equation
-4x-3y=-3
--------------
        -19y=-19
Solve for y getting y=1    You may now solve for x by substituting the value 1 for y in either equation and solve for x.

anonymous · Answer

Thank you! I understand these a little better now..

radar · Answer

Very good and good luck with them.