3(3x - 6) = 18
what is the answer

Step-by-step explanation:

3(3x - 6) = 18

9x-18=18

    +18  +18

9x=36

/9    /9

x=4

If you found this helpful please make it the brainiest.

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb