pooh1198 pooh1198

15-02-2017
Mathematics

Answered

3x + 4y = 5

3x - 4y = -11 by elimination

Verified Answer :

christinann062 christinann062

15-02-2017

To solve by elimination you just add the equations to "cancel out" one of the variables. In this case we would cancel out the y by adding.

3x+4y=5
+
3x-4y=-11
_______
6x=-6
x=-1

Now, since we have our x value, we can plug it into either of the other equations to get the y value.

3(-1)+4y=5
-3+4y=5
4y=8
y=2

Your answer for this system is x=-1 and y=2

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