WILL GIVE BRAINLIEST!!!! pls help -solve the following equations using substitution and show all steps/work. 1. -5x+y=-2

Question

WILL GIVE BRAINLIEST!!!! pls help
-solve the following equations using substitution and show all steps/work.

1. -5x+y=-22
-6x+5y=-15

2. -6x+7y=6
7x+y=-7

3. -6x+4y=-16
8x+5y=-20

4. y=-6x+3
18x+3y=-3

5. y=-5x-21
y=8x+18

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Huyền Thanh 6 months 2021-08-17T07:41:23+00:00 1 Answers 0 views 0

Answers ( )

    0
    2021-08-17T07:43:09+00:00

    Answer:

    -5x+y=-22

    Add -y to both sides.

    -5x+y+(-y)=-22+(-y)

    -5x=-y-22

    Divide both sides by -5

    -5x/-5=-y-22/-5

    x=1/5y+22/5

    which is your answer^

    Step-by-step explanation:

    -6x+5y=-15

    Add -5y to both sides.

    -6x+5y+(-5y)=-15+(-5y)

    -6x=-5y-15

    Divide both sides by -6

    -6x/-6=-5y-15/-6

    x=5/6y+5/2

    which is the answer to the first set of questions.

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