brittanycandace brittanycandace

30-04-2014
Mathematics

Answered

We are doing adding and subtracting these eqations by elimination! Need Help!

3x+4y=11
6x+4y=-10 4w+122=10
-4w+2Z=50

Answer :

ionaham ionaham

30-04-2014

3x+4y=11. x-2
6x+4y=-10.

-6x-8y=-22
6x+4y=-10

6x cancels out
-4y=-32
y=8

sub:
3x+4y=11
3x+4(8)=11
3x+32=11
3x=-21
x=-7

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