SOLUTION: Find all values of x so that y = 0 y=5[x-(7-x)] - 9(x+1) I have followed their minute details and still get it wrong - HELP I've tried: 0=5[x-7+x] - 9(x+1) (distributiv

Algebra ->  Expressions-with-variables -> SOLUTION: Find all values of x so that y = 0 y=5[x-(7-x)] - 9(x+1) I have followed their minute details and still get it wrong - HELP I've tried: 0=5[x-7+x] - 9(x+1) (distributiv      Log On


   

Question 119911: Find all values of x so that y = 0
y=5[x-(7-x)] - 9(x+1)
I have followed their minute details and still get it wrong - HELP
I've tried:
0=5[x-7+x] - 9(x+1) (distributive property in brackets)
0=5[2x-7] - 9(x+1) (combining likes in the bracket)
0=10x - 35 - 9x -9
0=x -44 ?????????
where am I going wrong?
Thanks - Nancy

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
I see nothing wrong with your work.
The conclusion should be written as:
x+=+44
To check your solution, substitute x = 44 into the original equation and solve for y.
y+=+5%28x-%287-x%29%29-9%28x%2B1%29 Substitute x = 44
y+=+5%2844-%287-44%29%29-9%2844%2B1%29
y+=+5%2844-%28-37%29%29-9%2845%29
y+=+5%2881%29-405
y+=+405-405
y+=+0 Your solution (x = 44) is correct!