Question 16407
1. 4(1-2x)+3=79

First you want to time 4 by everthing in the () so that would be (4*1)-(4*2x) to get (4-8x)+3=79. 
Add 4 and 3 together

7-8x=79
Subtract 7 on both sides
-8x=72
divide by -8 on both sides

Answer x=-9