Twice the difference of a number and 6 equals 7

9.5

Step-by-step explanation:

First, we set up the equation. Let the number = x.

2(x-6) = 7

Divide by 2 on both sides:

x-6 = 3.5

Add 6 on both sides:

x = 9.5

4+n=5

step-by-step explanation:

this is because the four is four hours and the n represents the 1 extra hour over the weekend.

b= i'm srry i don't know that one.

4+n=5 n=1 because if vernon plays 5 hours a week then 4+1=5 hours.

hope this : )

fd

step-by-step explanation: