SOLUTION: If 3X - 1 = 11, what is the value of X^2 + X?

Algebra ->  Test -> SOLUTION: If 3X - 1 = 11, what is the value of X^2 + X?       Log On


   

Question 205512: If 3X - 1 = 11, what is the value of X^2 + X?
Answer by Targetweek(62) About Me  (Show Source):
You can put this solution on YOUR website!
3x-1+=+11
%283x-1%29%2B1+=+%2811%29%2B1
3x+=+12
%283x%29%281%2F3%29+=+12%281%2F3%29
x+=+4
then
x%5E2%2Bx
%284%29%5E2%2B4
16%2B4+=+20
the final answer in 20