Paddy field in bhutan are mostly located along the river basins. why?

This is where they grow the best.

Explanation:

Factors such as climate and location are taken into consideration when determining why something is where it is.

These paddy fields are located along the river basins because this is where it best grows, along with the climate of the area Bhutan is.

a memoir is the correct answer

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