What type of scan tool is shown in the above photograph?

a. laptop computer adapter
b. factory scan tool
c. bluetooth interface
d. generic scan tool

D) Generic scan tool

Explanation: Generic scan tool is the device used for scanning of the common characteristic and parts  of the cares and related vehicle for reading the codes .It act as the diagnosis device.

Other options are incorrect because adapter of computer is used for connection , factory scan tool is used for scanning factory equipment and codes. Bluetooth interface is the interface for the Bluetooth connectivity.Thus, the correct option is option(D).

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x