Question 5(Multiple Choice HELP QUICKKKKKKJJ Worth 1 points) (04.02 LC) Solve the following system of equations:

Question

Question 5(Multiple Choice
HELP QUICKKKKKKJJ
Worth 1 points)
(04.02 LC)
Solve the following system of equations:
x + 3y = -4
X + 5y = -6
(1, 1)
(-1, 1)
(1, -1)
(-1,-1)

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Phúc Điền 2 months 2021-07-30T07:39:33+00:00 2 Answers 4 views 0

Answers ( )

    0
    2021-07-30T07:40:36+00:00

    Y=(-4-x)/3
    Y=(-6-x)/5
    (-4-x)/3=(-6-x)/5
    -20-5x=-18-3x
    -5x+(3x)=-18+20
    -2x=2
    X=2/-2=-1

    -1+5Y=-6
    5Y=-6+1
    5Y=-5
    Y=-1

    0
    2021-07-30T07:40:47+00:00

    (-1,-1)
    -x+-3y=4
    x+5y=-6
    2y=-2
    y=-1
    x+3(-1)=-4
    x-3=-4
    +3=+3
    x=-1

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Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )