Question

Determine the unknown value in each equation
Q= 7+9d=7d +3

Answer 1

Answer:

d = -2

Step-by-step explanation:

7 + 9d = 7d + 3

4 + 9d = 7d

4 = -2d

d= 4/(-2)

So, d = (-2)

Answer 2

Answer:

-2 is right answer.

Step-by-step explanation:

• 7+9d=7d+3
• 9d-7d = 3-7
• 2d= -4
• d = -2