3. (01.07) Which of the following describes the correct process for solving the equation 2x + 6 = 22 and arrives at the correct solution? (1 point)
Divide both sides by 6 and then add 2. The solution is x = 8.
Subtract 6 from both sides and then divide by 2. The solution is x = 8.
Add 6 to both sides of the equation and then divide by 2. The solution is x = 6.
Subtract 6 from both sides of the equation and then divide by 22. The solution is x = 16.

the answer is b

391.6 is the correct answer

there is only one way to arrange all the eight relative to each other because they are not distinct. we have

now there are nine places to place an (and not more than one in one place).   because we have four symbols, we need to choose four of these nine places to insert an . order does not matter because the are not distinct.

thus there are 1 · c(9,4) ways, or, if we calculate it,

thus there are 126 ways to form such "words."