Question

What is the solution of the equation 7d+7=14 a) -3 b) 1 c)3 d)-1

Answer 1

Answer: b

Explanation:

`7d+7=14\\7d=14-7\\7d=7\\d=(7)/(7)\\ d=1`

Answer 2

Answer:b)1

Explanation:

7d+7=14

Step 1: Subtract 7 from both sides.

7d-+7-7=14-7

7d=7

Step 2: Divide both sides by 7.

7d/7=7/7

d=1

Hope that helps :)