Help me plz 50 points and ill give brainliest if you answer all

11)

Divide both sides by 2:

12)

( if you wanted the exact value.

13)

Switch sides:

Rearrange:

14)

15)

16)

Multiply both sides by 4:

17)

if you wanted the exact value.

18)

if you wanted the exact value.

Bonus Question:

Terrorist attacks took place against the United States in September 11 2001.

This is named "September 11 attacks" and you can search more about it online.

10. x = -2

12. 16

13. x = 7

14. 36

15. -15

16.  x = -40

17. 64

18. 32

Friday 9/11 The plane hijackings that struck the World Trade Center, the Pentagon, and a Pennsylvania field killed 2,977 people.

Step-by-step explanation:

the answer is 0.000652422

but if you ment to ask what is 6131 divided by 4, it is 1532.75.

step-by-step explanation: