math

how do you solve these

1. 7d-2+5=20

2. 4x-10x=28

3. -4x-10x+28

4. 8y-3y+6= -10

5. 9+4w-6=12

6. 9w+4-6=12

7.18m-6-m=-16

8. -6r-r-13=-18

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  1. 1.
    7d-2+5=20
    7d = 20 + 2 - 5
    7d = 17
    d = 17/7
    d = 2 3/7

    2.
    4x-10x=28
    -6x = 28
    x = 28/6
    x = 4 4/6 = 4 2/3

    Follow that pattern for the rest of your problems.

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  2. The answer to number two should be:
    - 4 2/3

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  3. i knew that

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