Which answer BEST describes what the Himalayas provided to the developing civilizations within the Indus Valley?
Select one:
о
mountains for hiking and exploring
O
rivers for fishing
O
grasslands for cattle grazing
a natural boundary from invading cultures

cultural/diplomatic relations. most medieval japanese   culture has chinese origins. writing, architecture etc.

8 years 100% positive

explanation:

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

you can talk about what you learned about them. and you can talk about what happened on you're journeys with them. and then you can put all of the thing you learned about them in you're diary.