On an airplane there are three seats on the left side in each row, there are three seats on the right side, and four seats in the middle. There are 330 seats altogether.
(a) How many seats are there on the left side of the plane?

(b) How many seats are there on the right side of the plane?

(c) How many middle seats are there on the plane?

he correct answer is 60 seats on the left side, but you might also want to know how I got that answer . . .

Let's say, n = number of rows

Since we know the airplane has an equal number of rows on the right side as it does on the left side, then we can mathematically show that:

number of sears on the right side = 3n = 90 seats

number of sears on the left side = 2n = ? seats

3n = 90

n = number of rows = 90/3 = 30 rows

Thus:

2n = 2(30) = 60 seats on the left side

as for how many seats all together, just add . . 90 + 60 = 150 seats total

step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?