SOLUTION: 7w-3(4w+8)=11 This question has been asked before, but I plugged it into the equation and -7 failed me. Please provide a step-by-step solution substituting w for -7.

Algebra ->  Equations -> SOLUTION: 7w-3(4w+8)=11 This question has been asked before, but I plugged it into the equation and -7 failed me. Please provide a step-by-step solution substituting w for -7.      Log On


   

Question 1152952: 7w-3(4w+8)=11
This question has been asked before, but I plugged it into the equation and -7 failed me. Please provide a step-by-step solution substituting w for -7.
Found 3 solutions by MathLover1, Edwin McCravy, ikleyn:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

7w-3%284w%2B8%29=11........solve for w
7w-12w-24=11
-5w-24=11
-11-24=5w
-35=5w
-35%2F5=w
w=-7
check:
7w-3%284w%2B8%29=11........substitute w for %28-7%29
7%28-7%29-3%284%28-7%29%2B8%29=11
-49-3%28-28%2B8%29=11
-49-3%28-20%29=11
-49%2B60=11
11=11

Answer by Edwin McCravy(20056) About Me  (Show Source):
You can put this solution on YOUR website!
7w-3%284w%2B8%5E%22%22%29=11
7w-12w-24=11
-5w-24=11
-5w=35
w=-7

Check:
7w-3%284w%2B8%5E%22%22%29=11
7%28-7%29-3%284%28-7%29%2B8%5E%22%22%29=11
-49-3%28-28%2B8%5E%22%22%29=11
-49-3%28-20%5E%22%22%29=11
-49%2B60=11
11=11

Edwin

Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
.

If you want to learn on how to solve simple and simplest linear equations,  read the lesson
    - HOW TO solve a linear equation
in this site.

Happy learning (!)