Answers

2014-01-11T18:08:06+08:00
First you simplify 3x and -7x. then you transpose 1. then u divide all sides by x

so 

3x-7x-1
-4x-1
-4x=1
 \frac{-4x}{-4} =  \frac{-1}{-4}


=  -\frac{1}{4}
0
2014-01-12T21:37:58+08:00
21 is my answer in this problem

0