[what is 3x]=9because I really dint know can you help me

X=3

Step-by-step explanation:

9 divided by 3 (which comes from 3x) equals 3

X= 3

x=3

Step-by-step explanation:

To isolate x, just divide 3 on both sides. The 3's will cancel out, so your left with 9/3 on the right. 9 divided by 3 is 3.

ask the math teacher she or he would know lol.

step-by-step explanation:

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.