Answer :

Answer:

1,1/7 or 0.85

Step-by-step explanation:

d-10-2d+7=8+d-10-3d=-5d=-d=d=5

in mathematics there is nothing like 1d,it is d

re-arrange

d-2d-d+3d+5d+d-d=10-7+8-10+5

7d=6

d=6/7

d=1,1/7 or 0.85

Answer:

D=1

Step-by-step explanation:

just took a test with this question in it.

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