how would I solve the problem? here is a system of equations. y= -2x + 2 y= -x – 1 how would I work this out

Question

how would I solve the problem?
here is a system of equations.

y= -2x + 2
y= -x – 1

how would I work this out to graph it to find the solution?​

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Thanh Hà 4 years 2021-09-04T17:57:02+00:00 1 Answers 8 views 0

Answers ( )

  1. Thunguyet
    0
    2021-09-04T17:58:49+00:00
    Reply

    equal both sides to each other since they’re both equal to y.
    so -2x+2=-x-1

    bring the x’s on one side and the numbers on the other by using opposite signs when bringing over.

    -2x +x=-1-2
    simplify.
    -x= -3
    take out the negative by dividing by -1 on each side.
    x=3
    now substitute ur x in ur equations with 3.
    so y=-2x+2 is y=-2(3)+2 which gives -4
    and y=-x-1 is y=-(3)-1 which is y=3
    then plot on graph

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