Posted by **i dont understand!** on Thursday, November 13, 2008 at 10:27pm.

i am thinking of a number. if you multiply it by 7, then add 15, and finally subtract 3^2 you get 48. write and solve an equation that describes the number (x) that i am thinking of.

how do i find it?

what is x?

- MATH -
**Trig**, Thursday, November 13, 2008 at 10:34pm
Let x be the number.

You multiply that number by 7

SO FAR WE HAVE: 7x

You add 15 to that number

SO FAR WE HAVE: 7x+15

You subtract 3^2 (which is 9) from that number

SO FAR WE HAVE: 7x+15-9

When you do all of that to the number, you get 48

THE FINAL EQUATION IS: 7x+15-9=48

TO SOLVE:

7x+6=48

7x=42

x=6

- MATH -
**i dont understand!**, Thursday, November 13, 2008 at 10:35pm
kk thank you

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