9(x + 2) = 5 - 2x - 1)

-1

Step-by-step explanation:

9(x+2)=5−2(x−1)

9x+18=5−2(x−1)

9x+18=5−2x+2

9x+18=7−2x

9x+18+2x=7

11x+18=7

11x=7−18

11x=−11

x=  11 /−11

​x=-1

step-by-step explanation:

ask goog great chance of finding the solution there

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.