Mathematics
Mee161
2017-08-18 05:45:15
what is the solution to the system of equations below? a) (-5, 3) b) (-2, -3) c) (3, -13) d) (-5, -17)
ANSWERS
Aman4
2017-08-18 06:48:47

I: 6x+3y=-21 II: 2x+5y=5 subtract 3*II from I: 3*II=6x+15y=15 I-3*II=6x+3y-(6x+15y)=-21-15 =6x+3y-6x-15y=-36 =-12y=-36 -y=3 y=3 insert y=3 in II: 2x+5*3=5 2x+15=5 2x=-10 x=-5 so the solution is a) (-5,3)

dammenj
2017-08-18 06:50:02

The correct answer is A Hope this helped :)

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