angeldevil1999 angeldevil1999

20-12-2014
Mathematics

Answered

3b I don't get I know the answer is x=-2 and y=-3 I just can't get it

3b I don t get I know the answer is x=-2 and y=-3 I just can t get it class=

Verified Answer :

konrad509 konrad509

20-12-2014

\(x+5y=-17\\ 3x-4y=6\\\\ x=-17-5y\\ 3x-4y=6\\\\ 3(-17-5y)-4y=6\\ -51-15y-4y=6\\ -19y=57\\ y=-3\\\\ x+5\cdot(-3)=-17\\ x-15=-17\\ x=-2\)

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