Answer:
d=1
Explanation:
Move 7 to the other side by subtracting 7 on both sides:
2d+7-7=9-7
The equation now looks like this:
2d=2
Divide 2 on both sides:
2d/2=2/2
d=1 which is the answer
D=1 or just 1, i dont get what the question is
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