Which equation is true?

To solve the equations involving “d,” let’s tackle each one step-by-step.

1. 4d = 4 – 5d

Add 5d to both sides:

4d + 5d = 4

9d = 4

Now, divide by 9:

d = 4/9

2. 4d = 4 – 9d

Add 9d to both sides:

4d + 9d = 4

13d = 4

Now, divide by 13:

d = 4/13

3. 4d = 26 – 5d

Add 5d to both sides:

4d + 5d = 26

9d = 26

Now, divide by 9:

d = 26/9

4. 4d = 26 – 9d

Add 9d to both sides:

4d + 9d = 26

13d = 26

Now, divide by 13:

d = 2

To summarize:
1. d = 4/9
2. d = 4/13
3. d = 26/9
4. d = 2

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