How do I do the question -x+y=4 need help please and thank u

Question

How do I do the question -x+y=4 need help please and thank u

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Autumn 1 month 2021-09-13T15:43:57+00:00 2 Answers 0

Answers ( )

    0
    2021-09-13T15:45:13+00:00

    Answer:

    c

    Step-by-step explanation:

    0
    2021-09-13T15:45:49+00:00

    y= x+4: x= y-4

    Step-by-step explanation

    you have to do the inverse of whatever you figuring out so to solve for Y you would add x to both sides and once you have Y alone that’s your answer and for X you subtract Y and divided both sides by -1 because lone variable can never me negative.

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45:7+7-4:2-5:5*4+35:2 =? ( )