What is the value of x in the equation 8+4 = 2(x-1)?

05
11/2
13/2
7

7

Step-by-step explanation:

8+4=2(x-1)

12=2(x-1)

x-1 = 12/2

x-1 = 6

x = 6+1 = 7

it is b)

hope this : )

step-by-step explanation:

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.