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+159
When you do all of that to the number, you get 48
THE FINAL EQUATION IS: 7x+159=48
TO SOLVE:
7x+6=48
7x=42
x=6

MATH  i dont understand!, Thursday, November 13, 2008 at 10:35pm
kk thank you
Answer This Question
Related Questions
 math  . I am thinking of a whole number. If I divide it by 13, then multiply ...
 math  Kevin and Zach are playing a number guessing game. Kevin says, "I am ...
 Its math, cmon answer!!!  This is my HW problem; I'm thinking of a number. When...
 Math, Please Help!  Ned divided a given number by 3 and then added 2. If he ...
 maths  i am thinking of a number i multiply it by 8 and subtract 163 i would ...
 math  im thinking of a number. i add 12. i double it. I subtract 8. I halve the...
 Word Problem Algebra  1. Multiply a number by 4, then multiply this product by...
 Math  I am thinking of a number. If you multiply my number by 6 and then ...
 Math  I am thinking of a number When I subtract 15 and multiply the answer by 6...
 Algebra  How do I express this in algebraic form? And could you please explain ...
More Related Questions