How many children did king john have

7. which was not an important advance made by the maya:

-deviced and accurate map of the world.

8. what was justinian code:

-a single, consistent set of laws for the byzantine empire.

9. which describes what theodora achieved as justinian´s most trusted adviser:

-getting laws passed to give married women more rights and to protect divorced women.

10. what caused the christian church to divide into two branches- the eastern orthodox church and the catholic church:                                             -differences in language, liturgy, and views on religious icons.

11. what was a result of the work done by the monks cyril and methodius:       - orthodox christianity spread to slavic cultures.

12. which is true about byzantine culture:

-it was a blend of greco-roman and persian culture.

13. which was not a major accomplishment of byzantine culture:

-the reconstruction of moscow

14. which group invaded the slavic homeland beginning in the ninth century:

-varangians

15. what did vladimir, prince of kiev, do in 988 to unify his people:       - he converted to orthodox christianity

16. what is the name of the book in which muhammad ´s words and teaching were collected:

-quran

17. what is the hajj:

-the pilgrimage to mecca that all muslims must undertake if possible

18. which accurately describes islamic belief:

-muhammad is god´s only prophet.

19. what happened to islam after the death of muhammad:

-it was practiced by only few people in small parts of the world

20. which region shows the extent of islamic territory 100 years after muhhamed´s death:

-egypt, mesopotamia, persia.(b)

21. which led to the division between sunni and shia following the death of muhammed:

-conflict over who should be the caliph

22. the muslims achieved many spectacular advances, which was not one of them:

-they created the justinian´s code.

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13